text: The device was unintentionally detonated by a bomb squad robot 
   
   The backpack was found in a garbage can in a nearby restaurant 
   
   FBI agents are reviewing surveillance footage 
   
   After a suspension, transit service has resumed 
   
   Explosion follows 2 other nearby weekend incidents 
   
   FBI questioning 5 people about N.Y. explosion Saturday 
   
   And Elizabeth man named as suspect in N.Y. case taken into custody 
   
   ELIZABETH -- An improvised explosive device in a backpack detonated near the Elizabeth train station early Monday as authorities were using a bomb robot to examine the item, officials said. 
   
   The blast occurred around 12:40 a.m. near Morris Avenue and Julian Place. The explosion was not a controlled blast, but happened unintentionally as the robot was cutting the device, according to Mayor Christian Bollwage. No one was injured in the blast, Bollwage said. 
   
   Authorities found five devices inside a single backpack near the train station, including one that was detonated. After the explosion, press and bystanders were moved back because the four other explosive devices inside of the backpack were still believed to be live, Bollwage said. 
   
   No other explosions were heard as of 5 a.m. 
   
   
   
   
   
   On Twitter, the FBI's Newark division described the devices as "multiple improvised explosive devices." 
   
   Earlier Sunday night, the FBI detained five people in Brooklyn for questioning related to the Saturday night explosion in Manhattan that injured more than two dozen people. 
   
   The Elizabeth incident unfolded after two men found the backpack in a waste basket on North Broad Street and Julian Place around 8 p.m. Sunday, the mayor said. 
   
   The men took the backpack "because they thought it was of some value," walked for a bit, then saw wires and a pipe, dropped the package and notified Elizabeth police, he said. 
   
   Bollwage told reporters the explosives were originally found in the trash can about 300 feet from the door of Willy's Place near the train station in the city of about 125,000, which is also the Union County seat. 
   
   "If that pub was crowded and there was a lot of people there, it could have severely injured, killed and maimed many, many people," Bollwage told reporters. 
   
   Bollwage said the Elizabeth devices did not contain a cell phone or any other electronic detonators. 
   
   After the items were found, Union County's Bomb Squad was called in and used a drone to examine the backpack, the mayor said. 
   
   "The drone indicated it could be suspicious and it could be a live bomb," Bollwage said. 
   
   When asked if he ever thought Elizabeth would be the target of such an attack, Bollwage said he was not sure the city was the intended target and that the devices could have instead been dumped by a person who realized he or she was being investigated. 
   
   "I'm not willing to admit Elizabeth is a terror target," Bollwage said. "Because of the location, it's very possible someone was trying to get rid of package as opposed to set it off." 
   
   Bollwage said FBI agents are reviewing surveillance footage from the restaurant near the trash can where the backpack was first found by the two men. 
   
   
   
   
   
   Reached after midnight on Monday morning, a spokesman for the FBI in Newark, Special Agent Michael Whitaker, said only that his agency had responded to the scene, and declined to provide any details of the investigation. 
   
   The FBI asked anyone with information to call 1-800-CALL-FBI. 
   
   Police cordoned off the station and many streets surrounding it. The investigation halted train service on the busy Northeast Corridor and North Jersey Coastline commuter rail lines. Later, officials said service would resume at 5:30 Monday, with delays expected. 
   
   Tickets and passes on both rail lines are being cross-honored on PATH along with NJ Transit and private buses, according to the transit agency. 
   
   Amtrak service was also suspended near Elizabeth, spokesman Craig Schulz said in a statement. 
   
   "We apologize to our customers for the inconvenience and will resume service as soon as it is safe to do so," the spokesman said. 
   
   Approximately 2,400 Amtrak passengers were impacted by the service suspension, the spokesman said. 
   
   "Robust security measures are in place at stations, on trains and along the tracks and Amtrak Police remain in close contact with local, state and federal partner agencies to coordinate and share intelligence information," the statement said. "At this time there are no specific or credible threats against Amtrak." 
   
   It was not immediately clear if the Elizabeth incident was linked to a bombing Saturday night in New York City that injured 29 people or another pipe-bomb style device that went off near a military charity race in Seaside Park also on Saturday. 
   
   BREAKING PHOTO: blast near Elizabeth NJ train station as bomb techs try to disarm device. Video soon. @PIX11News pic.twitter.com/doX6PgktXw -- Anthony DiLorenzo (@ADiLorenzoTV) September 19, 2016 
   
   Bomb techs from the FBI, Union County, & the New Jersey State Police have arrived on the scene and are now rendering the area safe -- FBI Newark (@FBINewark) September 19, 2016 
   
   This post will be updated as more information becomes available. 
   
   Steve Strunsky and Tom Haydon contributed to this report. 
   
   Jessica Remo may be reached at jremo@njadvancemedia.com. Follow her on Twitter @JessicaRemoNJ. Find NJ.com on Facebook. 
   
   Noah Cohen may be reached at ncohen@njadvancemedia.com. Follow him on Twitter @noahyc. Find NJ.com on Facebook. ||||| NEW YORK - New York City Mayor Bill de Blasio said Sunday that residents of the city would see an expanded presence of police as officials investigate a bombing in Chelsea that injured 29, while guarding the United Nations General Assembly, which draws leaders from around the world to New York each year. 
   
   “You will see a very substantial NYPD presence this week, bigger than ever,” de Blasio said during a press conference just after noon Sunday. 
   
   De Blasio said all 29 victims of the explosion, which rocked a crowded and popular Manhattan neighborhood, have been released from area hospitals. Another possibly-explosive device discovered blocks away was safely removed early Sunday. 
   
   Sources told CBS New York Sunday evening that the FBI made a car stop on the Belt Parkway near the Verrzano Bridge. There are several people in custody. It’s unknown the reasons for the car stop or whether its in regards to Chelsea. 
   
   The FBI said in a statement that at 8:45 p.m., the FBI and NYPD conducted a traffic stop of a vehicle of interest in the investigation into Saturday’s bombing in Manhattan. No one has been charged with any crime. The investigation is continuing. 
   
   Officials said there’s no evidence currently linking the explosion to terrorism, and said the incident appeared to be unrelated to a pipe bomb explosion earlier Saturday in Seaside Park, New Jersey near the start line of a charity run. 
   
   “We know from everything we’ve seen so far that this was an intentional act. Again we do not know the nature of it, we do not know the motivation,” de Blasio said. 
   
   At a press conference earlier on Sunday morning, New York Governor Andrew Cuomo said he had spoken with New Jersey Governor Chris Christie, and so far the explosives did not appear to be similar. 
   
   Atlhough Cuomo on Sunday referred to the explosion as an act of “terrorism,” NYPD, FBI and other NYC officials were hesitant to use the phrase until a suspect or motive could be established. 
   
   In an appearance on CBS’ “Face the Nation,” Rep. Peter King, R- N.Y., said it could still well turnout to be a terrorist act. 
   
   “We had the Times Square bombing back in New York in 2011,” King said. “It took several days before we realized that that was coming out of the Taliban and Pakistan.” 
   
   Roselyn Olivares, who lives on 23rd Street between Sixth and Seventh avenues, said the blast did damage to her fourth floor apartment. 
   
   “My bedroom window was blown out,” she told 1010 WINS Radio. “We didn’t know what it was.” 
   
   During the U.N. General Assembly, New York typically increases police presence, but officials said Sunday law enforcement would be on particularly high alert in the city this week, as a result of the explosion. 
   
   Cuomo said 1,000 additional law enforcement officers were being deployed after the Saturday night blast in Chelsea, a primarily residential neighborhood on Manhattan’s west side that’s known for its art galleries and large gay population. 
   
   Stephane Dujarric, Spokesman for the U.N. Secretary General, told CBS News’ Pamela Falk that more than 14,000 passes have been issued for dignitaries, their aides, and additional press for the U.N. General Assembly this year. 
   
   “Security inside the United Nations is being assessed on a constant basis. Outside of the UN, security is the responsibility of the host country. We receive great cooperation and appreciate the support from the federal authorities and the NYPD throughout the year, and especially during the General Assembly to keep staff, delegates and visitors safe,” Dujarric said. 
   
   It was unclear who was behind the blasts in New York and New Jersey, and what motivated them. A law enforcement source tells CBS News senior investigative producer Pat Milton that while no suspect nor motive has been established, terrorism has not definitively been ruled out as a possibility. 
   
   The second device that officers investigated four blocks from the Chelsea scene was a pressure cooker with a cellphone and wires attached, and was found in a plastic bag. The device was removed with a robot and taken to a department firing range in the Bronx. 
   
   An NYPD official tells CBS News they were successfully able to pull the device apart. They did not have to blow it up. 
   
   Two law enforcement sources tell CBS News the device that exploded appears to also have been a pressure cooker bomb. One source said officials believe it was set off with a cellphone signal. 
   
   New York Police Commissioner James O’Neill said at Sunday afternoon press conference that a bomb squad was still investigating the device. 
   
   Authorities have one person on surveillance video seen planting at least one of bombs in Manhattan, CBS News learned Sunday night. This individual has not been identified. Authorities stress that he may or may not be the person who did this, but it is a solid lead. 
   
   A source tells CBS News that they have not yet definitively made the connection between the blast in Chelsea, and the blast in Seaside. However, the source says both the Chelsea bombs and the Seaside Park bombs use cellphones as triggers. 
   
   The New York Times reports the second device appeared to be similar to the devices used in the Boston Marathon bombing. 
   
   Homemade pressure cooker bombs were used in the Boston Marathon attacks in 2013 that killed three people and injured more than 260. 
   
   
   
   The explosion that rocked a bustling Chelsea neighborhood appeared to have come from a construction toolbox in front of a building. Photos from the scene show a twisted and crumpled black metal box. 
   
   “This is a very dense area, the whole block is restaurants and residences and this area on a warm Saturday night is an area swarming with people,” New York City Councilman Cory Johnson told CBS New York. 
   
   The blast happened on West 23rd Street, in front of a residence for the blind, near a major thoroughfare with many restaurants and a Trader Joe’s supermarket. Witnesses said the explosion at about 8:30 p.m. blew out the windows of businesses and scattered debris in the area. Officials said no evacuations were necessary. 
   
   On Sunday, a team of five FBI agents searched an Uber driver’s vehicle that had been damaged in the Manhattan blast, ripping off the door panels inside as they examined it for evidence. 
   
   The driver, MD Alam, of Brooklyn, had just picked up three passengers and was driving along 23rd Street when the explosion occurred, shattering the car’s windows and leaving gaping holes in the rear passenger-side door. 
   
   “It was so loud,” the 32-year-old Alam said. “I was so scared. There was a loud boom and then smoke and I just drove away.” 
   
   Alam said he hit the gas and tried to take his passengers to their destination in Queens, but pulled over along Madison Avenue and 39th Street. He went to a local police precinct to file a report for his insurance company and police contacted the FBI. 
   
   New York City subway routes were affected by the explosion, which rattled some New Yorkers and visitors on the heels of the 15th anniversary of the 9/11 terror attacks. Cuomo said mass transit in the area would resume as early as Monday. 
   
   In Los Angeles, Police Chief Charlie Beck asked Emmys attendees to remain vigilant in the wake of explosions in New York City and New Jersey. Beck said there were no known credible threats to security in Los Angeles, but those attending Sunday’s Emmys in downtown Los Angeles were asked to report any suspicious activity. ||||| ELIZABETH, N.J. (AP) — A suspicious device found in a trash can near a New Jersey train station exploded early Monday as a bomb squad was attempting to disarm it with a robot, officials said. 
   
   Elizabeth Mayor Christian Bollwage said that the FBI was working to disarm one of five devices found in the same bag, which was discovered in a trash can by two men around 8:30 p.m. Sunday, near the Elizabeth train station on New Jersey Transit's Northeast Corridor rail line. The men had reported seeing wires and a pipe coming out of the package, Bollwage said. 
   
   There was no immediate report of injuries or damage. A message left with the FBI wasn't immediately returned. The mayor warned that other explosions were expected. 
   
   NJ Transit service was suspended early Monday between Newark Liberty Airport and Elizabeth, and New Jersey-bound Amtrak trains were being held at New York Penn Station, officials said, while New York-bound Amtrak trains were being held in Trenton. 
   
   Train passengers reported being stuck on Amtrak and NJ Transit trains for hours Sunday night, while some trains moved in reverse to let passengers off at other stations. Amtrak said 2,400 passengers were affected and that trains were being brought into other stations for people to get other transportation. It wasn't clear when the Elizabeth station would be open, a threat to cause major issues on the Monday morning commute into New York. 
   
   The discovery of the suspicious package comes a day after an explosion in Manhattan injured 29 people, and an unexploded pressure-cooker device was found four blocks away. Also Saturday, a pipe bomb exploded about an hour from the Elizabeth train station in Seaside Park, New Jersey, forcing the cancellation of a military charity 5K run. Officials said it didn't appear that those two incidents were connected, though they weren't ruling anything out. 
   
   Investigators didn't immediately comment on whether they thought the Elizabeth incident was connected to either of the two blasts. 
   
   Bollwage said that he wasn't willing to say that Elizabeth had become a target, and that it was possible that someone worried about the authorities was trying to get rid of the package. 
   
   "I'm extremely concerned for the residents of the community, but more importantly extremely concerned for everyone in the state and country where someone can just go and drop a backpack into a garbage can that has multiple explosives in it with no timers and then you have to wonder how many people could have been hurt," Bollwage said. 
   
   ___ 
   
   This story has been corrected to show that the bag was found around 8:30 p.m., not 9:30 p.m. ||||| The discovery of a bag containing explosive devices near a train station in Elizabeth was causing big headaches for commuters. NJ Transit service was partially suspended and Amtrak trains weren't able to travel from New York Penn Station to Newark Penn Station. Checkey Beckford reports. (Published Monday, Sept. 19, 2016) 
   
   What to Know Five people were taken into custody by the FBI Sunday for questioning after a traffic stop on the Verrazano Bridge 
   
   As that was happening, a suspicious package was discovered at the Elizabeth train station in New Jersey 
   
   Trains were halted between EWR and Elizabeth, halting traffic on the busy North East Corridor ahead of the morning rush 
   
   Commuting will be a struggle Monday for thousands of NJ Transit and Amtrak commuters as authorities continue their investigations into a series of explosions and incendiary devices in New York City and New Jersey over the weekend. 
   
   New Jersey Transit warned trains on multiple lines were subject to delays of up to an hour amid the ongoing police investigation. 
   
   Service on all Northeast Corridor and North Jersey Coast lines resumed Monday morning. It had been suspended in both directions late Sunday night after a device found inside a bag near the NJ Transit station in Elizabeth, New Jersey, exploded. 
   
   NJ Transit said commuters should expect residual delays and service changes as the investigation in Elizabeth continues. 
   
   All New Jersey-bound Amtrak trains were also held at New York Penn Station after the bag was discovered in Elizabeth, hampering travel on the busy North East Corridor. Trains began moving out of New York Penn around 5:30 a.m. 
   
   Amtrak said that Acela Express, Northeast Regional and other services will operate Monday with some schedule modifications. The railroad service said that passengers should expect cancellations and delays throughout the day. 
   
   In Manhattan, West 23rd Street between Sixth and Seventh avenues reopened by 9 p.m. Monday after police spent the weekend investigating the blast there. Other roads that were initially closed for the investigation -- including parts of Sixth Avenue, Seventh Avenue, and West 14th to West 23rd streets -- were reopened earlier. 
   
   PATH trains are skipping 23rd Street in Manhattan. PATH will cross-honor NJT passengers at NWK, HOB, WTC and 33rd Street stations. 
   
   The 1 train has resumed making normal stops at its 23rd and 28th street stations, though the northeast stairway at the 23rd Street station remains closed, according to @NYCTSubway. The E and F trains are also stopping again at 23rd Street stations. 
   
   Due to the 23rd Street closure, MTA buses M5, M7, M23 and X1 are detoured in both directions. 
   
   The news of the suspicious bag at the Elizabeth station in New Jersey was first reported late Sunday night, around the same time that the FBI said it had taken five people from Elizabeth, New Jersey into custody for questioning after a traffic stop on the Verrazano Bridge. 
   
   The FBI confirmed that the 8:45 p.m. Verrazano traffic stop was part of an investigation into Saturday's bombing in Manhattan that injured 29 people. None of them have been charged with a crime and the investigation is ongoing. 
   
   The devices in Elizabeth apparently looked similar to what detonated in Seaside Park, New Jersey, on Saturday morning ahead of a race. No one was injured in the Seaside Park explosion. 
   
   Hunt for Clues in 'Intentional' Chelsea Explosion ||||| NEW YORK (Reuters) - U.S. authorities on Wednesday were looking into whether an Afghan-born American citizen charged with carrying out bombings in New York and New Jersey acted alone or had help as the city’s top federal public defender sought access to the suspect. 
   
   Police in New York City said they had not yet been permitted by doctors to speak to Ahmad Khan Rahami, 28, who was arrested on Monday after being wounded in a gunfight with police in Linden, New Jersey. 
   
   Rahami has been charged with wounding 31 people in a bombing in New York on Saturday that authorities called a “terrorist act.” 
   
   The Federal Bureau of Investigation released a photo of two men who found a second, unexploded pressure cooker device they say Rahami left in a piece of luggage in Manhattan’s Chelsea neighborhood on Saturday night. 
   
   The two men, who took the bag but left the improvised bomb on the street are not suspects, officials said, but investigators want to interview them as witnesses. 
   
   “As far as whether he’s a lone actor, that’s still the path we are following, but we are keeping all the options open,” William Sweeney, the FBI’s assistant director in New York, told reporters. 
   
   Rahami is also charged with planting a bomb that exploded in Seaside Park, New Jersey, but did not injure anyone and planting explosive devices in his hometown of Elizabeth, New Jersey, which did not detonate. He faces charges from federal prosecutors in both states. 
   
   Federal prosecutors portray Rahami, who came to the United States at age 7 and became a naturalized citizen, as embracing militant Islamic views, begging for martyrdom and expressing outrage at the U.S. “slaughter” of Muslim fighters in Afghanistan, Iraq, Syria and Palestine. 
   
   Investigators were also probing Rahami’s history of travel to Afghanistan and Pakistan, and looking for evidence that he may have picked up radical views or trained in bomb-making. 
   
   Both government and pro-Taliban sources in Pakistan on Wednesday said they had no knowledge of Rahami having met with prominent people connected to the Taliban or other religious groups. 
   
   Prosecutors plan to move Rahami to New York from the New Jersey hospital where he is being treated as soon as his medical condition allows, said Preet Bharara, the U.S. attorney in Manhattan. 
   
   Policemen place in an ambulance a man they identified as Ahmad Khan Rahami, who is wanted for questioning in connection with an explosion in New York City, in Linden, New Jersey, in this still image taken from video September 19, 2016. REUTERS/Anthony Genaro 
   
   DEFENSE LAWYER DEMANDS COURT APPEARANCE 
   
   Rahami’s wife met with U.S. law enforcement officials while in the United Arab Emirates and voluntarily gave a statement, a law enforcement official said on Wednesday. She was not in custody. 
   
   A New Jersey U.S. congressman previously said Rahami had emailed his office in 2014 for help in getting her a visa to enter the United States from Pakistan when she was pregnant. 
   
   Rahami’s defense attorney, David Patton, on Wednesday demanded that his first court appearance to be scheduled as soon as possible, even if it occurs in his hospital bed, saying that the defendant had a constitutional right to a lawyer and a court appearance within two days of his arrest. 
   
   New York Police Commissioner James O’Neill told a news conference that investigators had not yet received doctors’ clearance to interview Rahami, adding, “That may happen in the next 24 hours, pending the doctors’ approval.” 
   
   Federal prosecutors in New York noted that while they had filed charges against Rahami, he remained in the custody of state officials in New Jersey, who initially arrested him after Monday’s gunfight. They said that makes Patton’s request for access premature. 
   
   Patton, in a subsequent filing, shot back that such delays were unacceptable. 
   
   “Mr. Rahami was arrested more than 48 hours ago. His bail in New Jersey was set without any appointment of counsel or court appearance. He still has not been provided counsel. He does not have a scheduled court appearance in New Jersey until next week,” Patton said. 
   
   Slideshow (21 Images) 
   
   The attacks in New York and New Jersey were the latest in a series in the United States inspired by Islamic militant groups including al Qaeda and Islamic State. A pair of ethnic Chechen brothers killed three people and injured more than 260 at the 2013 Boston Marathon with homemade pressure-cooker bombs similar to those used in this weekend’s attacks. 
   
   Rahami, in other parts of a journal that prosecutors said he was carrying when he was arrested, praised “Brother” Osama bin Laden, the al Qaeda leader slain in a 2011 U.S. raid in Pakistan; Anwar al-Awlaki, an American-born Muslim cleric and leading al Qaeda propagandist who was killed in a 2011 U.S. drone strike in Yemen; and Nidal Hasan, the U.S. Army psychiatrist who shot dead 13 people and wounded 32 at Fort Hood, Texas, in 2009. 
   
   Republican Rep. Michael McCaul, house Homeland Security Committee chairman, told CNN that Rahami’s writings in a journal showed that his actions had been inspired by Islamic State as “his guidance came from the lead ISIS spokesman.” 
   
   “What that tells me as a counterterrorism expert that now we can definitively say this was an ISIS-inspired terrorist attack.” ||||| (CNN) Three attacks in 12 hours -- explosions on New York and New Jersey streets and a stabbing spree in a Minnesota mall -- combined for tumultuous weekend, afflicting injury and moments of alarm and leaving investigators scrambling for answers. 
   
   As Monday's sunrise approached, New York City ramped up security not only because of the bombing that injured 29 people in Manhattan and the discovery of a mysterious device blocks away, but also because world leaders are gathering at the United Nations for debate at the General Assembly. 
   
   Questions abounded about Saturday's incidents, including: What, exactly, were the motives? 
   
   There were hints in the Minnesota attack, with ISIS claiming that a man who injured nine people in stabbings in St. Cloud before an off-duty police officer killed him was a "soldier of the Islamic State," though there was no immediate evidence he'd had contact with the terror group. 
   
   A recap of the three incidents, all of which authorities said were being investigated as possible terror acts: 
   
   • Around 9:30 a.m. in Seaside Park, New Jersey, one of three pipe-bomb-type devices that were wired together detonated in a garbage can, tearing apart the container but injuring no one; the other two didn't explode, federal law enforcement officials said. 
   
   Officials said the blast probably was timed to disrupt a Marine Corps charity run, but no one was near the blast because registration problems delayed the race. Officials said the device had a cell phone as a timer; no one has claimed responsibility. 
   
   • Around 8:30 p.m. in Manhattan's Chelsea neighborhood, an explosion rocked 23rd Street and 6th Avenue, injuring 29 people and sending panicked people scrambling for cover. A law enforcement source said it came from a device planted in or near a dumpster. 
   
   Investigators found an intact pressure cooker blocks away. New York Gov. Andrew Cuomo said the pressure cooker and the exploded device in Chelsea were similar, and other officials said both devices had cell phones as apparent timers. No one has claimed responsibility. Investigators found similarities between the explosives used in both states, according to multiple law enforcement officials, but authorities said they have not concluded the incidents are linked. 
   
   • About 9 p.m. ET (8 p.m. CT) in St. Cloud, Minnesota, a man wearing a security uniform entered Crossroads mall, made a reference to Allah and stabbed nine people before an off-duty police officer shot him dead, police said. He asked at least one person whether he or she was a Muslim before he attacked, witnesses said. 
   
   JUST WATCHED Mayor: Off-duty officer who shot attacker a hero Replay More Videos ... MUST WATCH Mayor: Off-duty officer who shot attacker a hero 01:18 
   
   Police did not immediately release the attacker's name, and CNN hasn't independently verified ISIS' claim that he was linked to the group. St. Cloud's police chief said investigators were "trying to get to the bottom of his motivations." No official has suggested ties between the mall attack and the explosions in New Jersey and New York. 
   
   NYC police presence 'bigger than ever' 
   
   New Yorkers already were going to see a big police presence in the city because of the 71st session of the UN General Assembly, about a 2-mile drive from the Chelsea blast site. 
   
   An explosion in New York City injured 29. 
   
   But Saturday's explosion means the police presence will be even more intense, Mayor Bill de Blasio said Sunday. 
   
   "You should know you will see a very substantial NYPD presence this week -- bigger than ever," he said 
   
   And Cuomo said 1,000 additional New York State Police officers and National Guard troops will be deployed to patrol bus terminals, airports and subway stations. 
   
   'This is a new era' 
   
   Saturday's incidents follow a few other mass attacks that happened on US soil in the past year, including the deadly December shootings in San Bernardino, California, and the deadly June shootings at a gay nightclub in Orlando, Florida. In both of those incidents, the attackers claimed an affinity for ISIS. 
   
   Threat of Islamist attacks alone has kept federal investigators busy -- the FBI has said that it is mounting 900 investigations of suspected Islamist militants in all 50 states. FBI Director James Comey said in July that ISIS terrorists may be dispersed in the West as the terror group loses territory in Iraq and Syria. 
   
   But Comey isn't worried just about Islamist terror threats. 
   
   "Our focus now is on a much more disparate threat that's hard to see -- unpredictable, motivated, and driven by people who are just disturbed," he said in an interview posted Friday on the FBI's website. 
   
   New York isn't the only metropolis to take notice of Saturday's attacks. On the other coast, Los Angeles' police were gearing up for two high-profile events Sunday: the Emmy Awards and the Los Angeles Rams' first home game since their return from two decades in St. Louis. 
   
   "As you wake up this morning to the troubling events in New York and New Jersey, please rest assured we have been monitoring the situation throughout the night," Los Angeles Police Chief Charlie Beck said in a statement released on Twitter. He said police had taken steps to ensure the Emmys and the football game would be safe, and asked people to be vigilant. Both events took place without incident. 
   
   US Rep. Charlie Rangel, a Democrat who represents Manhattan, told CNN that Saturday's attacks -- and a level of vigilance needed to combat them -- represent "a new norm." 
   
   "This is a new era, and everyone just has to be alert," he said Sunday. 
   
   Photos: Explosion in Manhattan New York Mayor Bill de Blasio, right, and New York Gov. Andrew Cuomo, second right, look over the mangled remains of a dumpster Sunday, September 18, in New York's Chelsea neighborhood. An explosion injured 29 people there the night before. Hide Caption 1 of 21 Photos: Explosion in Manhattan Authorities believe the blast was caused by an explosive device in or near this dumpster. All 29 victims have been released from hospitals, according to the governor. Hide Caption 2 of 21 Photos: Explosion in Manhattan FBI agents review the scene of the explosion on Sunday morning. Hide Caption 3 of 21 Photos: Explosion in Manhattan Police officers redirect passers-by as investigations continue early on Sunday morning. Hide Caption 4 of 21 Photos: Explosion in Manhattan A fire truck at the scene of the blast on Saturday. Hide Caption 5 of 21 Photos: Explosion in Manhattan The New York Police Department's Counterterrorism Bureau tweeted this image of the crumpled dumpster following the explosion in Chelsea. Hide Caption 6 of 21 Photos: Explosion in Manhattan Just blocks away from the explosion, a suspicious device was found. Officials said the device appeared to be a pressure cooker with dark-colored wiring protruding, connected by silver duct tape to what appeared to be a cell phone. Hide Caption 7 of 21 Photos: Explosion in Manhattan De Blasio, in the blue tie, speaks at a news conference near the scene on Saturday. He was joined by New York Police Commissioner James O'Neill. Hide Caption 8 of 21 Photos: Explosion in Manhattan Police block off a road near the site of the explosion. Hide Caption 9 of 21 Photos: Explosion in Manhattan Firefighters and emergency workers gather at the scene. Hide Caption 10 of 21 Photos: Explosion in Manhattan Police officers and firefighters respond to the scene. Hide Caption 11 of 21 Photos: Explosion in Manhattan A New York police officer and his dog check a garbage can close to the scene of the explosion. Hide Caption 12 of 21 Photos: Explosion in Manhattan Two heavily armed police officers survey the scene. Hide Caption 13 of 21 Photos: Explosion in Manhattan New York police at the scene of the explosion. Hide Caption 14 of 21 Photos: Explosion in Manhattan A bomb squad vehicle arrives at the scene. Hide Caption 15 of 21 Photos: Explosion in Manhattan Police arrive at the scene of the explosion. Hide Caption 16 of 21 Photos: Explosion in Manhattan A street is blocked off nearby. Hide Caption 17 of 21 Photos: Explosion in Manhattan Police and firefighters gather near the scene. Hide Caption 18 of 21 Photos: Explosion in Manhattan A crowd gathers near the site of the explosion. Hide Caption 19 of 21 Photos: Explosion in Manhattan A line of emergency vehicles near the scene of the explosion. Hide Caption 20 of 21 Photos: Explosion in Manhattan Onlookers gather on the street. Hide Caption 21 of 21 
   
   The off-duty police officer who killed the Minnesota attacker reflects that kind of alertness, CNN law enforcement analyst Art Roderick said 
   
   "No law enforcement officer believes they're ever off duty anymore," Roderick told CNN's Fredricka Whitfield. "I think everybody now just about carries a firearm when they're off duty from their regular law enforcement job." 
   
   In Elizabeth, New Jersey, federal and local authorities were called into action Sunday night to investigate the contents of a backpack found in a garbage can near a train trestle, according to Mayor Chris Bollwage. As a precaution, local rail and bus service was suspended. 
   
   After two men spotted the suspicious package, which had wires and a pipe but no apparent timing devices, they reported it to authorities. The FBI's bomb squad then deployed a robot to examine the devices. The suspicious package exploded after the bomb robot cut a wire in an effort to disarm the device. 
   
   Authorities do not know if the Elizabeth explosion has ties to the Chelsea bombing. 
   
   'The entire neighborhood is real scared' 
   
   Many in Chelsea were rattled by Saturday's bombing. Danilo Gabrielli, 50, was watching TV at his 23rd Street apartment about a block away from the explosion site when he heard the blast. He rushed to see what had happened and found a chaotic scene. 
   
   "We smelled something, like an intense sulfur smell, and saw smoke coming out of this building. I saw pieces of metal -- not large, but not small either. A few friends of mine saw glass there." 
   
   Gabrielli said "the entire neighborhood is real scared." 
   
   "It's a real quiet neighborhood -- not like the center of the city or the Wall Street area. It's tiny bars, where you go to grab a drink, grab a bite to eat, watch a film. We were worried." 
   
   'It's not stalling everybody that lives here' 
   
   Ryker Allen, 19, noticed the increased security presence in Manhattan. He woke up Sunday at his home in the Flatiron District, not far from the explosion, and saw "easily 100 police officers" meeting in front of his building. 
   
   He said the attack was unnerving, but people still were going about their business. 
   
   "I feel like it's something that's kind of hovering over, but it's not stalling everybody that lives here. It's not stopping anybody from getting their tasks done," he said. 
   
   Allen wasn't alone in taking it in stride. 
   
   For those trying to capitalize on the explosion: People aren't freaking out in Chelsea. People aren't in fear in the City. This in New York! — Ali H. Soufan (@Ali_H_Soufan) September 18, 2016 
   
   "For those trying to capitalize on the explosion: People aren't freaking out in Chelsea. People aren't in fear in the City," Ali H. Soufan's Twitter account read Saturday night.
target: – A bomb squad robot was destroyed and another had its arm blown off when one of five bombs found in a backpack near a New Jersey train station blew up early Monday. The FBI says the other four devices found will be encased in blastproof material and taken to the agency's headquarters for further investigation, the New York Times reports. The devices—which were discovered by two men who found the backpack on top of a garbage can outside a restaurant near the Elizabeth station—will be closely examined for evidence linking them to explosive devices found in New York City and elsewhere in New Jersey over the weekend. A round-up of coverage: Elizabeth Mayor Christian Bollwage says the two men thought the backpack held something of value and carried it some distance before realizing it held explosive devices and calling police, NJ.com. He says in its original location near a pub, the devices could have caused carnage. "If that pub was crowded and there was a lot of people there, it could have severely injured, killed and maimed many, many people," the mayor says. The AP reports that thousands of Amtrak and NJ Transit passengers were affected by the discovery of the device, with some stuck on trains for hours. Service has resumed but passengers in the area have been warned that they can expect delays Monday. NBC New York reports that investigators believe surveillance video shows the same man at two locations where explosive devices were found in Manhattan. Police aren't sure whether there is a link between the New York devices and those found in New Jersey. CNN reports that there is now an increased security presence in New York City not just because of the bombs, but because world leaders are gathering for the United Nations General Assembly. A law enforcement source tells CBS that investigators believe cell phones were used as triggers for both the Manhattan blast—which NY Gov. Andrew Cuomo calls "obviously an act of terrorism"—and the device that exploded before a New Jersey race to benefit Marines and sailors early Saturday. It's not clear whether a trigger was found with the Elizabeth devices. Bollwage says he's not sure his city was targeted. He suspects somebody may have just dumped the devices in Elizabeth, but he is "extremely concerned for everyone in the state and country where someone can just go and drop a backpack into a garbage can that has multiple explosives in it with no timers and then you have to wonder how many people could have been hurt." An official close to the investigation tells Reuters that all the devices involved have been crude and the level of planning appears low—but some investigators fear this was just a test. "That's what worries us," he says. "Was this some kind of test run, not just of the devices, but also of the surveillance in New York and the response?" (The FBI says it is questioning five people found in a "vehicle of interest.")