AUSTIN, Texas (CNN) Two more bombs exploded Sunday night in Austin, Texas, where several recent package bomb explosions are believed to be related.

Austin police and EMS confirmed a reported explosion on Dawn Song Drive, and said two males in their twenties were transported to a hospital with serious, but non-life threatening injuries.

Sunday's explosions come less than a week after police said three package explosions that happened over 10 days were connected.

Those explosions killed a man and teenage boy and severely injured an elderly woman.

It's not clear if Sunday's explosion is related to the previous events.</s>The Roots have cancelled their SXSW showcase due to “a security concern.” The Roots & Friends Jam was set to take place tonight at Fair Market in Austin, Texas, but the venue reportedly received a bomb threat, according to the Austin Chronicle. Bud Light apologized for cancelling in a statement, saying, “We felt it was necessary to take all safety precautions.” See the company’s full response below. Questlove initially tweeted about the cancellation in two since-deleted posts; he described the reason as “a severe emergency.” Ludacris, Dermot Kennedy, Jessie Reyez, Rapsody, Tank & the Bangas, and more were scheduled to participate in the event.

Due to a security concern, we have made the difficult decision to cancel tonight’s Bud Light x The Roots SXSW Jam. After working proactively with SXSW, the Austin Police Department, and other authorities, Bud Light believes this is the best course of action to ensure the safety of our guests, staff, and artists, and appreciate your understanding. We are truly sorry to have to cancel the event, but we felt it was necessary to take all safety precautions.

Earlier this week, three packages that were delivered to residential homes in Austin exploded. Two people were killed. The crimes appeared to have been related, the New York Times reported, but no connection to SXSW has been established.</s>Two men were taken to the hospital with serious but non-life threatening injuries after an explosion in southwest Austin, Texas, on Sunday evening, authorities said.

Austin police and EMS confirmed the reported explosion via Twitter, as the city has been rattled by a series of blasts.

The two injured men were in their 20s and taken to South Austin Medical Center, according to an Austin EMS tweet.

The latest explosion comes less than a week after police said three package explosions that happened over 10 days were connected. Those explosions killed a man and a teenager, and injured two others.

Austin bombs were 'meant to send a message,' authorities believe It's not clear if Sunday's explosion is related to the previous events. The Sunday incident was reported on Dawn Song Drive, with police warning residents in the immediate area to stay inside their homes until further instruction from officers. Developing story - more to come</s>AUSTIN, Texas - Austin police have ruled out a man charged with making an SXSW bomb threat as a suspect in a string of recent deadly bombings in East Austin that began March 2.

“We do not believe he is involved in the string of package bombs,” Interim Police Chief Brian Manley said Sunday. “We looked into him and we are not thinking he is involved in this.”

Police on Saturday night arrested Trevor Weldon Ingram, 26, and charged him with making a terroristic threat, a third-degree felony punishable by up to 10 years in prison.

Manley said investigators have looked into Ingram’s threat and his background, but he declined to say other steps they have taken to rule him out.

“We have run him through the investigative process,” Manley said.

Police say the Fair Market in East Austin received a bomb threat at 4:23 p.m. Saturday, forcing the cancellation of an SXSW show by the Roots. Officers then checked the area but found nothing suspicious, officials said.

“In the interest of safety, (promoter) Bud Light made the decision to cancel the event,” according to a news release from the city of Austin early Sunday morning.

Ingram’s sister, Brittany Ingram, declined to comment Sunday morning on her brother’s arrest, but told the American-Statesman that he is not responsible for three recent bombing attacks in Austin that killed two people and left a third with serious injuries.

The emailed threat comes as authorities investigate three package bombings at homes in the last few weeks.

On March 2, 39-year-old Anthony Stephan House was seriously injured after a package at his home in Northeast Austin detonated. He later died in the hospital. Police at the time said it was an isolated incident and there was no danger to the public.

But that changed on March 12, when police responded to two more package bombings in East Austin. In the first bombing that day, Draylen Mason, 17, was killed, and his mother suffered injuries. A second attack at another home sent a woman in her 70s to the hospital with serious injuries.</s>Law enforcement -- including federal agents from the FBI and ATF -- flooded a normally quiet neighborhood in southwest Austin overnight, after an explosion injured two people. Police believe a bomb left on the side of the road exploded, injuring two people.

According to a first responder, one of the victims had a nail in his wound, reports correspondent Omar Villafranca.

Police say the two men injured in last night's explosion were with their bikes when the bomb went off. "It is very possible that this device was a device that was activated by someone either handling, kicking, or coming in contact with a tripwire that activated the device," said Austin Interim Police Chief Brian Manley.

The two victims are hospitalized in good condition.

Police have ordered everyone within about a half-mile of the explosion to stay inside their homes.

The blast follows a trio of package bombs that killed two and injured two others this month. Police are working under the belief that last night's explosion is connected.

Police were continuing to examine the blast site Monday morning, and combing through the neighborhood to make sure there are no other threats.

Chief Manley said investigators were checking a backpack found near the scene of the blast, and warned people to stay away from anything suspicious.

"We now need the community to have an extra level of vigilance and pay attention to any suspicious device, whether it be a package, a bag, [or] a backpack," he said.

CBS affiliate KEYE-TV reported that the incident happened in the 4800 block of Dawn Song Drive, near Mopac and 290, around 8:45 p.m. Sunday.

Police say they are waiting until daylight to confirm this neighborhood is safe and are asking people to stay in their homes until at least 10 a.m.
• None Series of bombs left in packages puts Austin residents on edge ("CBS Evening News")
• None 2 Austin families targeted by package bombs knew each other 



Earlier this month, three package bombs were left on porches in East Austin. All three exploded, killing two people and severely injuring two others. All of the victims were black or Hispanic.

Assisting Austin police are more than 500 federal officials. By Sunday afternoon, 735 suspicious packages were reported, 435 leads were called in, and 236 people had been interviewed.

A reward for information has risen to $115,000.

Manley believes the previous explosives were meant to send a message.

"We hope this person or persons is watching and will reach out to us before anyone else is injured or anyone else is killed," Chief Manley said.
• None Man arrested for bomb threat that shut down Roots concert at SXSW in Austin</s>Why they call it madness. First, the breaking news. Another explosion in Austin, Texas. The fourth in less than three week. Federal investigators are on the scene. Residents told to stay in their homes. Our chief justice correspondent Pierre Thomas has the latest. Reporter: This morning -- There's a loud explosion. Reporter: Federal agents and police sweeping this neighborhood in Austin, Texas, after a fourth explosion rocked a home in less than 20 days. We need to lock down a two-block perimeter. There's a nail in the wound of one of the subjects. Reporter: The detonation injuring two men in their 20s. Both rushed to an area hospital. We walked out, hear so many sirens. Reporter: Overnight, police extending a lockdown until 10:00 this morning. Urging residents within a mile and half raid use to stay in their homes. Even school bus can't access the affected areas. We need the community to have an extra level of vigilance. It's a real situation now. Not, oh, don't touch any packages. No, seriously, if you see anything weird and stressing it to your children. Reporter: This latest incident coming 17 days after the first reported explosion just a few miles away. Police have fold up on more than 700 phone calls about suspicious packages in the Austin area. Authorities investigating where last night's attack was in response to to press briefing. There's an increase in the reward. Reporter: The blast coming hours after the police department offered $110,000 reward. We need that tip. You may have the one piece of information that lets us put this all together. Reporter: The bombings were meant to send a message. The packages were designed to look innocent. Unassuming. ABC news learning the bombs were built using nuts, bolts, nails, and metal pieces at shrapnel. They believe the suspect is highly skilled, since he's able to move the packages without detonating them. Police are deeply concerned that the sustained nature of these atacts is making it painfully clear that Austin as a serial bombing on its hands. Thank you, Pierre. We're joined by Austin major Steve Adler and Austin police</s>
• Two men were injured Sunday night in Austin, Texas, in an explosion possibly caused by a bomb detonated by a trip wire, the police said.
• The incident marks the fourth blast in the city in March.
• The police have been investigating a string of deadly package bombings that killed two people and seriously injured another.
• It's unclear whether Sunday night's explosion was connected to the three others.

Two men in Austin, Texas, suffered non-life-threatening injuries after a roadside explosion that may have been triggered by a trip wire on Sunday evening, the police said.

The Austin Police Department said on Twitter that residents near the area should stay in their homes until officers instructed otherwise.

"We now need the community to have an extra level of vigilance and pay attention to any suspicious device," Austin Police Chief Brian Manley said.

"Given that there may have been a different triggering mechanism in this device, we wanted to get that out as early as possible."

The incident comes after a recent string of deadly package bombings, which killed two people and severely injured a third this month. Authorities have said they believe at least two of the blasts are linked.

"We're working on belief that they are connected," Manley said.

Manley told reporters on Sunday that it was "obvious that an explosion has taken place" but that nightfall had prevented investigators from determining exactly what happened.

Manley said it was unlikely the police would know more, or deem the neighborhood safe, until daybreak. He said the police were working to clear a second item in the area that appeared to be a backpack.

Manley added that he couldn't answer reporters' questions because investigators didn't yet know enough about the Sunday-night incident but reiterated authorities' message to avoid all suspicious-looking packages.

"Not only do not touch any packages or anything that looks like a package, do not even go near it at any time," he said.

'We want to understand'

Manley held a press conference earlier Sunday saying authorities wanted whoever was responsible for the package explosions to come forward and share their "message."

"These events in Austin have garnered worldwide attention, and we assure you that we are listening," Manley said, addressing the bomber or bombers directly. "We want to understand what brought you to this point, and we want to listen to you."

Manley added that anyone responsible for the explosions could contact the police through 911 or reaching out online. He added that police hadn't yet determined a motive for the attacks.

The previous three explosions in March occurred in different parts of Austin. The first occurred March 2, killing Anthony Stephan House, 39.

House's death was initially investigated as suspicious but was later viewed as a homicide, the Associated Press reported. The bomb that killed him was powerful enough to destroy the front porch of the house, Manley told reporters.

Two other explosions occurred March 12 — one of them killed Draylen Mason, 17, and the second seriously injured a 75-year-old Hispanic woman.

None of the packages were delivered through the mail. Instead, they were left overnight on the victims' doorsteps.

The police are investigating potential connections between House and Mason, each of whom belonged to prominent black families whose members knew each other. It is unclear whether race played a role in the attacks.

Investigators have speculated that the bomb that injured the elderly woman may have been intended for a different target, The New York Times reported.

Here's a map of where the first three explosions occurred:

This is a developing story. Check back for updates.</s>Image copyright Reuters Image caption Police have sealed the area around the scene of the blast

Police in Austin, Texas, have said four explosions that have rocked the city, killing two people, are believed to be the work of a serial bomber.

The latest explosion on Sunday night, which injured two white men, aged 22 and 23, may have been activated by a tripwire, police say.

Three parcel bombs left on doorsteps have killed two people and injured two others since early March.

Investigators say they have seen similarities in all four cases.

"We are clearly dealing with what we expect to be a serial bomber at this point," Austin police chief Brian Manley said at a news conference on Monday.

"We have seen similarities in the devices that exploded here last night and the other three devices."

Sunday night's victims suffered non-life threatening injuries and were taken to hospital after encountering a suspicious device on the side of a road in a residential area, police said.

The latest blast came hours after officials announced a new $100,000 (£71,000) reward for information.

The cash reward is on top of an existing $15,000 being offered by the state's governor.

The two men killed earlier this month were African Americans and police have not ruled out racism as a possible motive.

Mr Manley has said he believed the attacks were "meant to send a message".

He said authorities could not confirm whether a specific ideology was behind the attacks, but appealed to those behind the bombings to contact authorities directly.

"We are not going to understand that [message] until the suspect or suspects reach out to us to talk to us," Chief Manley said.

Image copyright FBI

Hundreds of federal agents are helping local police, but there has been no arrest. Authorities say they have responded to 735 reports of suspicious items since last Monday.

The first bomb exploded on 2 March, killing Anthony Stephan House, 29, at his home. Two more bombs exploded 10 days later, and were linked to the initial blast.

Draylen William Mason, 17, was killed when he brought a package inside his home. The explosion also critically injured his mother.

Hours later a 75-year-old Hispanic woman was injured by another package. Local media reports this may have been intended for someone else.

The local National Association for the Advancement of Colored People (NAACP) president Nelson Linder told NBC news that the two murdered victims had links to local prominent African-American families and were connected by the same Methodist church.

Investigators say the devices were being left on doorsteps overnight, not being delivered by official methods.

With the city on high alert, a concert by hip-hop band the Roots was cancelled on Saturday after organisers received a bomb threat via e-mail.

They were due to perform at the city's South by Southwest festival, known as SXSW.

A 26-year-old was later arrested, but police have ruled out any link to the package bombs.</s>11 a.m.

 

Authorities are urging the public to provide surveillance video that could assist in the investigation into the string of bombings in the Texas capital of Austin.

 

During a news conference Monday, police Chief Brian Manley asked homeowners and others to forward video to investigators that might offer insight into the bombing Sunday night or three earlier this month.

 

The latest explosion injured two men in their 20s who were riding or walking their bicycles through a neighborhood in southwestern Austin. The earlier blasts killed two people and injured two others and happened in other parts of the city.

 

Authorities say the device that detonated Sunday featured a tripwire and was left near a road, while the prior bombings involved packages left on people's doorsteps.

 

___

 

10:50 a.m.

 

Austin's police chief says the four bombings that have killed two people and injured four others in Texas' capital city this month are believed to be the work of a serial bomber.

 

Police Chief Brian Manley said at a news conference Monday that Sunday night's explosion that injured two men marks a "significant change" from the first three because it was triggered by a tripwire that would have hit any random person walking by it. The first three attacks were carried out with package bombs left on people's doorsteps.

 

Manley says as investigators search for a pattern in the attacks, they will try to determine if there is a specific ideology motivating them.

 

The attack Sunday happened in a southwestern Austin residential neighborhood that isn't close to the sites of the first three attacks.

 

___

 

10:25 a.m.

 

Authorities have called on the person or people behind the bombings in Austin, Texas, to reach out to the police to let them know why they're setting off the explosives.

 

Police Chief Brian Manley said Monday that it's too soon to say whether Sunday night's bombing that injured two men could have been a response to his call for those behind the bombings to reach out.

 

Manley says investigators see "similarities" between Sunday night's bomb and three others this month that killed two people and injured two others. But he says Sunday's differed in that it involved a tripwire whereas the others were package bombs left on people's doorsteps.

 

Frederick Milanowski, the special agent in charge for the Bureau of Alcohol, Tobacco and Firearms, says the latest bomb is "more sophisticated" because it used a tripwire.

 

___

 

10:15 a.m.

 

Authorities say investigators see "similarities" between the latest bomb to detonate in Texas' capital city and three bombs that went off earlier this month.

 

Police Chief Brian Manley said at a news conference Monday that although the bomb that injured two men Sunday night seems linked to the three previous ones, the latest bomb involved a tripwire and those three were package bombs left on people's doorsteps.

 

Frederick Milanowski, the special agent in charge for the Bureau of Alcohol, Tobacco and Firearms, says the latest bomb is "more sophisticated" because it used a tripwire.

 

Manley says the two victims are men ages 22 and 23 and that they are hospitalized in stable condition with significant injuries.

 

Both men are white, as opposed to the victims of the three prior bombings, who were black or Hispanic. Those attacks killed two people and injured two others.

 

___

 

9 a.m.

 

Austin's mayor says growing anxieties are "legitimate and real" following the fourth bombing in the city this month.

 

Mayor Steve Adler told The Associated Press on Monday that residents shouldn't think twice about calling 911 if they see anything suspicious. A blast occurred Sunday night in a neighborhood far from the sites of the three package bombings in Austin this month.

 

Police haven't confirmed the latest explosion, which injured two men who were riding or pushing bikes, is related to the first three, but they're looking into the possibility.

 

Authorities say Sunday's explosion was detonated by a tripwire and showed a different level of skill from previous blasts. Adler says the concern now is that "the methodology has changed."

 

___

 

8:30 a.m.

 

Austin's police chief says the two men injured in the most recent bombing in Austin were riding or pushing bicycles when the explosives detonated.

 

Police Chief Brian Manley told ABC's "Good Morning America" on Monday that Sunday night's explosion was detonated by a tripwire and showed "a different level of skill." The attack differed from three earlier blasts in Austin this month, which were caused by package bombs left on people's doorsteps.

 

The men injured in Sunday's blast were white, unlike the victims of the first three bombings, who were black or Hispanic.

 

Authorities have cordoned off the neighborhood where the bomb went off Sunday night and have warned residents to remain indoors while officers check for anything suspicious.

 

___

 

8:20 a.m.

 

The University of Texas' campus police force is warning students returning from spring break to be aware of the four recent bombings to hit Austin, saying, "We must look out for one another."

 

In a tweet Monday, UT Austin police said, "When you get on campus this morning ASK your friends if they've heard about the bombings. TELL them about the incidents."

 

It also urged students to report suspicious items to the authorities. Classes were resuming Monday after a week off.

 

A blast triggered by a tripwire in a residential neighborhood Sunday night injured two men. Three previous package bombs detonated in different parts of the city since March 2, killing two people and injured two more.

 

None of those incidents were close to the university's sprawling campus near the heart of Austin.

 

___

 

8 a.m.

 

Austin's police chief says the latest bombing to hit the city was detonated by a tripwire, "showing a different level of skill."

 

Police Chief Brian Manley told ABC's "Good Morning America" on Monday that both of the men injured in Sunday night's blast are white, unlike the victims in the city's three previous bombings this month, who were black or Hispanic.

 

Sunday night's explosion happened in the southwestern Austin residential neighborhood of Travis Country. The three previous bombings happened two-plus weeks in residential neighborhoods east of Interstate 35, which divides the city.

 

Authorities have warned Travis Country residents to remain indoors until 10 a.m. as police scour the area for anything suspicious.

 

___

 

7:25 a.m.

 

Police have warned residents near the site of the latest explosion in Austin to remain indoors and to call 911 if they need to leave home before 10 a.m.

 

Authorities say Sunday night's explosion in the Travis Country neighborhood in southwestern Austin injured two men and may have been triggered by a tripwire. The police chief repeated his warning to residents not to touch or approach suspicious packages.

 

Investigators are trying to determine whether the blast is related to three package bombings this month in other parts of the city that killed two people and injured two others.

 

Austin's school district announced that buses wouldn't be going into the Travis Country neighborhood.

 

Authorities had already offered $115,000 in rewards for information leading to an arrest in the first three bombings.</s>Law enforcement authorities say a bomb that exploded early Tuesday morning at a FedEx processing center in Schertz, Texas could be the latest in a series of blasts that have happened in the Austin area during the past three weeks.

The device went off a little after midnight in the processing center some 60 miles from Austin. Authorities say that bomb was in a package marked for delivery to an Austin address, sent from an Austin address.

The explosion comes on the heels of another attack that took place Sunday night in Austin. The blast, believed to be triggered by a tripwire, injured two men.

Here is a timeline of events since the first bombing happened earlier this month.

6:55 a.m. – Anthony Stephan House, 39, finds a package on his front porch as he is leaving his home at 1112 Haverford Dr. in the northwest part of Austin. The package, which was left overnight, explodes as House picks it up. He is taken to an area hospital where he later dies from his wounds.

6:44 a.m. – Seventeen-year-old Draylen Mason brings a package left at his 4806 Oldfort Hill Drive home into the kitchen to open it. A bomb inside the box explodes, killing the teenager and wounding his mother. Mason was a gifted musician.

11:50 a.m. – Later that day, Esperanza Morena Herrera, 75, picks up a package outside her home at 6708 Galindo St. in southeast Austin. The bomb inside the package explodes, critically injuring Herrera.

2:30 p.m. – Texas Gov. Greg Abbott asks the public for help in finding information about the bombings. He announces a $15,000 reward for information leading to the arrest of anyone involved in the attacks.

4 p.m. – The Austin Police Department ups the reward for information about the bombings by an additional $50,000.

>> Austin bombings Q&A: What are the distinctive traits of a serial bomber?

2:53 a.m. – Austin police arrest Trevor Weldon Ingram, 26, was arrested on charges of making a terroristic threat in connection with a bomb threat that led to the cancellation of band The Roots’ show Saturday at the South by Southwest festival.

2 p.m. - The Austin police announce another reward increase, making the total $115,000.

8:30 p.m. – Two men in their 20s either riding or waking a bike in the 4800 block of Dawn Song Drive in southwest Austin trip a wire attached to an explosive device and are injured by the blast. The bomb is the first to use a tripwire to detonate the device.

>> Austin bombings: What we know about the bomber’s habits

1:30 a.m. - Austin interim Police Chief Brian Manley, warns Austin residents not to pick up suspicious packages or other items, and to call 911 if they should come across one.

2:30 p.m. - Gov. Abbott announces he is authorizing the use of $265,500 from an emergency fund to purchase portable X-ray machines that would be used to examine suspicious packages while minimizing the risks to law enforcement officers.

12:30 a.m. – A bomb explodes at a FedEX processing plant in Schertz, Texas, about 50 miles from Austin. One person was injured when the package detonated as it moved from an upper conveyer belt to a lower one. Authorities said the package was to be delivered to an Austin address and was sent from an Austin address.

 An employee wrapped in a blanket talks to a police officer after she was evacuated at a FedEx distribution center where a package exploded, Tuesday, March 20, 2018, in Schertz, Texas.
In Austin, Texas, a fourth bomb detonates, injuring two men. The Austin Police Department believes it is connected to the other parcel bombings, but do not believe it to be connected to the bomb threat leveled at the SXSW festival.