A second suspicious package addressed to former Vice President Joe Biden reportedly turned up at a Wilmington, Delaware, postal facility Thursday morning.

The package is similar to others containing pipe bombs that were sent to high-profile figures including former Secretary of State Hillary Clinton, a source told The Associated Press.

Postal supervisor Sherina Dawson told 6abc Action News that an employee called attention of the package because it had Democratic California Rep. Debbie Wasserman Schultz as the name on the return address. Dawson said the item inside the package was similar in shape to a flashlight.

Police shut down the area around the postal facility, reported 6 ABC.

Police also shut down a postal facility in New Castle, Delaware, around 6 a.m. Thursday morning after the first suspicious package addressed to Biden was located. The FBI has taken over the investigation of the facility, reported 6 ABC.

“This country has to come together. This division, this hatred, this ugliness has to end,” Biden tweeted Wednesday before any suspicious packages addressed to him were located by law enforcement.

Law enforcement got a tip about a mysterious package addressed to the former VP and arrived at his Delaware home Wednesday night before the first package was located.

Biden is the latest intended recipient of the mystery bombs. Other intended recipients of the explosives include:

President Donald Trump addressed the bomb scares at a rally in Wisconsin Wednesday evening. (RELATED: Los Angeles Postal Facility Evacuated After Finding Second ‘Suspicious’ Package Addressed To Maxine Waters)

“Any acts or threats of political violence are an attack on our democracy itself,” President Donald Trump said at a rally in Wisconsin Wednesday evening. “No nation can succeed that tolerates violence or the threat of violence as a method of political intimidation, coercion or control. We all know that. Such conduct must be fiercely opposed and firmly prosecuted. We want all sides to come together in peace and harmony. We can do it.”

Content created by The Daily Caller News Foundation is available without charge to any eligible news publisher that can provide a large audience. For licensing opportunities of our original content, please contact licensing@dailycallernewsfoundation.org.</s>US actor Robert De Niro has had a suspicious package sent to his New York restaurant.

US actor Robert De Niro has had a suspicious package sent to his New York restaurant.

ROBERT De Niro and former US vice president Joe Biden are the latest in a series of targets to be sent suspicious packages thought to contain pipe bombs.

The package sent to De Niro was addressed to the Hollywood actor and delivered to his New York restaurant, the Tribeca Grill B in Manhattan.

The bombs were each about six inches long with a small battery and packed with powder and broken glass, said a law enforcement official who viewed X-ray images. The official said the devices were made from PVC pipe and covered with black tape.

CNN reported the package had similar markings to the pipe bomb sent to the network yesterday.

A law enforcement source said a similar package addressed to Mr Biden was intercepted at a Delaware mail facility, reigniting fear yesterday's bomb scare drama was not an isolated event.

The former Delaware senator is a Democrat who served as vice president in the Obama administration.

De Niro has clashed with Donald Trump several times - once branding him a "national disaster".

Mr Trump on Thursday morning blamed the media for provoking anger in Americans - but did not directly reference the bombs. "A very big part of the Anger we see today in our society is caused by the purposely false and inaccurate reporting of the Mainstream Media," he tweeted.

Former CIA director John Brennan, to whom the CNN bomb was addressed, hit back at Mr Trump's comments, telling him to "stop blaming others" and that his "inflammatory rhetoric, insults, lies, encouragement of physical violence are disgraceful."

It comes after 24 hours of chaos with up to nine suspicious parcels - some containing crudely built pipe bombs - intercepted before reaching targets including former US President Barack Obama, former Secretary of State and presidential candidate Hillary Clinton and Mr Obama's attorney-general Eric Holder.

All of the targets are frequently criticised by right-wing activists.

The US President has been criticised for failing to denounce the mail bombs as domestic terror, with Democrats claiming he has stoked anger against left-wing people and organisations.

The hashtag #MAGAbomber has begun trending on Twitter, infuriating Republicans who claimed Democrats were exploiting the news "to try to manipulate the public into thinking patriotic Americans are SOMEHOW responsible."

Another pointed out the device sent to CNN was wrapped in an Islamic State flag, although it was identified as a parody version of the distinctive design.

The President on Wednesday condemned the person or persons sending the packages, saying: "Acts or threats of political violence have no place in the United States.

He took a softer tone than usual at a rally in Wisconsin on Wednesday night. "Let's get along," he said. "By the way, do you see how nice I'm behaving tonight? Have you ever seen this?"

The New York City police bomb squad has removed the package sent to De Niro. It is now being taken to a "secure location in the Bronx", police said.

An employee of TriBeCa Productions, a television and film production company co-founded by the Hollywood actor, alerted police to the package sent to De Niro around 5am local time, AFP reported.

Police said officers would be joined by colleagues from the FBI and ATF at the restaurant, so traffic would be affected for some time while the investigators worked.

The first crude bomb discovered was delivered on Monday to the suburban New York compound of George Soros, a liberal billionaire and major contributor to Democratic causes.

The FBI said an additional package intended for former attorney general Eric Holder ended up at a Florida office of Democratic Representative Debbie Wasserman Schultz, whose return address was on it.

Two similar-looking packages addressed to California Congresswoman Maxine Waters - another fierce Trump critic - were also intercepted, the bureau said.

De Niro has clashed with Mr Trump several times in the past, both during the presidential campaign and afterwards. Before the 2016 election the actor slammed Mr Trump as "blatantly stupid," "totally nuts" and an "idiot."

New York Governor Andrew Cuomo yesterday said a device had been sent to his office in Manhattan, but it was unrelated to the mail bombs.

"We would not be at all surprised if more devices show up," said Mr Cuomo, a Democrat, at a media briefing on Wednesday afternoon local time. "There is a pattern."

FBI Director Christopher Wray said in a statement yesterday his agency would lead a Joint Terrorism Task Force of federal, state and local law enforcement agencies to "continue to work to identity and arrest whosoever is responsible for sending these packages".</s>Law enforcement officials are reportedly seeking out a package addressed to former Vice President Joe Biden because of similarities it has to suspicious packages sent to a number of other Democratic officials this week.

CNN's Jim Sciutto cited two law enforcement officials with the development Wednesday evening.

NBC News contributing correspondent Jonathan Dienst said on MSNBC that law enforcement officials are concerned that a potential package addressed to Biden was sent to the wrong address and therefore shipped to an office of Rep. Debbie Wasserman Schultz in Florida because that address appeared on the return label. He added that information from that U.S. Postal Service indicated that the package is out somewhere.

An array of Trump critics around the country were sent potentially explosive devices this week, including former President Barack Obama, former Secretary of State Hillary Clinton, former Attorney General Eric Holder, California Rep. Maxine Waters, and liberal billionaire philanthropist George Soros. Another package was sent to ex-CIA Director John Brennan at CNN's offices in New York City.

The potentially explosive devices included in these packages, sent in manila envelopes with a return address to Wasserman Schultz's office, are being examined by the FBI.

Earlier in the day it was reported that the package addressed to Holder was sent to the wrong address and therefore sent to Wasserman Schultz's office.

Authorities have yet to say they have a suspect.

"This country has to come together. This division, this hatred, this ugliness has to end," Biden tweeted earlier in the day.</s>The pipe bomb scare widened Thursday, as law enforcement officials seized three more suspicious packages and said they were similar to crude pipe bombs sent to George Soros, former President Barack Obama, Hillary Clinton, CNN, Rep. Maxine Waters and former Attorney General Eric Holder.Two packages addressed to former Vice President Joe Biden bearing similarities to the other packages were recovered at two postal facilities in Delaware. Another was addressed to Robert De Niro and sent to a Manhattan address associated with the actor.None of the devices exploded, and no one was injured. But the packages, sent to prominent Democrats critical of President Donald Trump, heightened nationwide tensions and fears two weeks before major congressional midterm elections.The packages sent to Biden were found in New Castle and Wilmington. The FBI and ATF responded to the facilities as part of the ongoing investigation into the devices, with authorities believing these to be ninth and 10th packages tied to the case.The packages addressed to Biden never reached their destination.The first crude bomb to be discovered had been delivered Monday to the Westchester County compound of George Soros , a liberal billionaire and major contributor to Democratic causes. Soros has called Trump's presidency "dangerous."Similar packages were addressed to the Clintons' home in Chappaqua and the Obamas' home in Washington , DC, though the Secret Service said neither package reached their intended recipients. Two more were sent to Waters, a frequent Trump critic, and another to Holder. His package never made it to its destination due to a delivery error and was bounced back to the return address, listed as Rep. Debbie Wasserman Schultz's office in Sunrise, Florida, which was briefly evacuated.Lastly, a police bomb squad removed a package addressed to for CIA Director John Brennan, an NBC News contributor, at CNN's New York City office at the Time Warner Center in Columbus Circle.The object appeared to be a small pipe bomb with wires extending from it, which was removed from the building at 11:37 a.m. and taken to a remote location to be detonated.Mayor Bill de Blasio called it an act of terrorism."What we saw here today was an effort to terrorize," he said. "This clearly is an act of terror, attempting to undermine our free press and leaders of this country through acts of violence. I want to make very clear that the people of New York City will not be intimidated, that we are going to go about our lives undeterred because the very concept of terrorism to change us, and we will not allow that to happen."The bombs seized Wednesday, each with a small battery, were about six inches long and packed with powder and broken glass, said a law enforcement official who viewed X-ray images and spoke on condition of anonymity to discuss an ongoing investigation.The official said the devices were made from PVC pipe and covered with black tape. They were sent to an FBI lab in Virginia to be studied. They are being treated as potentially explosive devices, but at this point, it remains unclear if they were designed to actually explode.Officials provided no details on a possible suspect or motive, and the investigation is ongoing.</s>
• Two suspicious packages were sent to former Vice President Joe Biden, adding to a rising number of attempted pipe bomb attacks on top Democrats and other public figures.
• The packages to Biden were intercepted at separate mailing facilities in Delaware.
• None All of the suspicious packages were sent to people who have been verbally attacked by President Donald Trump and been vocally critical of him as well.

Two suspicious packages were sent to former Vice President Joe Biden, adding to a rising number of attempted pipe bomb attacks on top Democrats and other public figures.

The packages to Biden were intercepted at separate mailing facilities in Delaware.

On Wednesday, officials revealed that bombs had been sent or addressed to former President Barack Obama, former Secretary of State Hillary Clinton, former CIA Director John Brennan, former Attorney General Eric Holder, and Democratic Rep. Maxine Waters.

The package addressed to Brennan was sent to CNN's offices in New York City, despite the fact the former CIA director is actually an NBC News analyst.

The package intended for Holder had an incorrect address and was returned to the sender, who was listed as Democratic Rep. Debbie Wasserman Schultz.

On Thursday, officials said a suspicious package was also sent to actor Robert De Niro in the Manhattan building where his production company is based.

All of the suspicious packages were sent to people who have been verbally attacked by President Donald Trump and been vocally critical of him.

Wednesday's incidents came two days after a bomb was found in the mailbox of billionaire George Soros, one of the biggest Democratic donors who has become a top target of right-wing conspiracy theories.

Trump on Wednesday condemned the attempted attacks, calling for unity and vowing to bring justice to those responsible. But on Thursday the president took to Twitter and accused the "Mainstream Media" of contributing to the "Anger we see today in our society" via what he described as "false and inaccurate reporting."
• The suspicious package sent to CNN's New York office was reportedly addressed to former CIA Director John Brennan
• White House and Donald Trump Jr. condemn explosive devices sent to Obamas, Clintons
• Hillary Clinton addresses attempted attack, says 'as an American I am worried'
• Trump condemns 'political violence' after pipe bombs sent to prominent Democrats, says 'we have to unify'
• Prominent conservative activists and talking heads are promoting a conspiracy that Democrats sent explosive devices to Clinton, Obama, Soros
• 'The inevitable consequence of Trump's incitement': Democrats accuse Trump of helping provoke attempted violence against Clintons, Obama, and Soros
• 'This clearly was an act of terror': NYPD safely removes 'live explosive device' from CNN's New York office after similar devices sent to Clinton, Obama homes

Anyone with information on the packages is being asked to call the FBI at 1-800-CALL-FBI or go to tips.fbi.gov.</s>At least six explosive devices have been sent to targets including Barack Obama, Hillary Clinton and CNN.

A SUSPICIOUS package has been found at a New York restaurant belonging to actor Robert De Niro.

The package is believed to have been addressed to the Hollywood actor and delivered to the Tribeca Grill B on Greenwich Street.

De Niro, 75, is an outspoken critic of US President Donald Trump, and has clashed with him several times - once branding him a “national disaster”.

CNN is reporting the package had similar markings than the pipe bombs that were packed with shards of glass sent yesterday.

The package has reignited fear in New York that yesterday’s bomb scare drama was not an isolated event.

The New York City police bomb squad has removed the package. It is now being taken to a “secure location in the Bronx”, police said.

An employee of TriBeCa Productions, a television and film production company co-founded by the Hollywood actoir, alerted police to the package around 5am local time, AFP reported.

Officers would be joined by colleagues from the FBI and ATF at the restaurant, meaning traffic would be affected for some time while the investigators worked.

It comes after 24 hours of chaos when up to seven suspicious parcels - some containing crudely built pipe bombs - were intercepted before reaching their targets, who included former US President Barack Obama, former Secretary of State and presidential candidate Hillary Clinton and Obama’s attorney-general Eric Holder.

Former CIA Director John Brennan, prominent Democratic Party donor George Soros and California Congresswoman Maxine Waters, another fierce critic of President Donald Trump, were also targets of packages.

All of the targets are frequently criticised by right-wing activists.

De Niro has clashed with Mr Trump several times in the past, both during the presidential campaign and afterwards.

Before the 2016 election the actor slammed Mr Trump as “blatantly stupid,” “totally nuts” and an “idiot.”

Meanwhile Mr Trump has blamed the media for provoking anger in Americans.

A law enforcement source told The Associated Press that the device found Thursday appeared to be linked to the others sent to Democratic figures and CNN’s New York City hub.

New York Governor Andrew Cuomo yesterday a device had been sent to his office in Manhattan, but it was unrelated to the mail bombs.

“We would not be at all surprised if more devices show up,” said Mr Cuomo, a Democrat, at a media briefing on Wednesday afternoon local time. “There is a pattern.”

More to come.</s>Apparent 'Pipe Bombs' Mailed To Clinton, Obama And CNN

toggle caption FBI

Updated at 9:38 p.m. ET

At least seven suspicious packages containing what the FBI called potentially destructive devices have been sent since Monday to several leading Democratic Party figures and to CNN in New York, triggering a massive investigation.

Authorities have yet to release any information about a possible suspect or suspects but, in an interview on CNN, New York City Police Commissioner James O'Neill said investigators are reviewing security video footage for clues as to who left the envelope at the network offices, the Associated Press reported.

The package received on Wednesday morning at the Time Warner Center was delivered by a courier service, law enforcement sources told CNN.

O'Neill said surveillance footage could lead to the identity of a messenger believed to have delivered a package containing an explosive device to the news channel's New York headquarters. He is "pretty sure those images will be caught on video and we'll be able to find out where that person came from before they entered the building and where they went to after."

"The packages are similar in appearance," the FBI stated, "and contain potentially destructive devices."

A photo released by CNN shows the small, rudimentary explosive wrapped in black electrical tape and a digital timer attached to the center.

Packages were addressed to George Soros, former Secretary of State Hillary Clinton, former President Barack Obama, former CIA Director John Brennan (care of CNN) and former Attorney General Eric Holder. All bore the return address of the office of U.S. Rep. Debbie Wasserman Schultz, the former Democratic National Committee chairwoman.

The packages were in manila envelopes with bubble-wrap interior, and the FBI says it is "possible that additional packages were mailed to other locations."

Enlarge this image toggle caption Spencer Platt/Getty Images Spencer Platt/Getty Images

In a statement issued on Wednesday afternoon Wasserman Schultz expressed dismay over her involuntary association with the menacing threats.

"This appalling attack on our democracy must be vigorously prosecuted, and I am deeply disturbed by the way my name was used," she wrote.

She confirmed that her offices in Sunrise and Aventura, Fla., were both evacuated "in an abundance of caution."

Speaking at an event in Texas, Brennan, whose security clearance was recently revoked by the White House, touched on the bomb scare. "If I and others are being targeted because we're speaking out and we're living up to our responsibilities as citizens I think that's a very unfortunate turn of events," he said.

The FBI confirmed on Wednesday night that two packages, similar in appearance, were addressed to California Democratic Rep. Maxine Waters.

Earlier in the day, Waters said U.S. Capitol Police intercepted a suspicious package targeting her office. Waters thanked law enforcement investigating the package and said in a statement, "I unequivocally condemn any and all acts of violence and terror."

"This investigation is of the highest priority for the FBI. We have committed the full strength of the FBI's resources and, together with our partners on our Joint Terrorism Task Forces, we will continue to work to identify and arrest whoever is responsible for sending these packages," FBI Director Christopher Wray said in the statement.

The Secret Service said Wednesday morning it had intercepted two suspicious packages that were addressed to former Secretary of State Hillary Clinton in Westchester County, N.Y., and former President Barack Obama's residence in Washington, D.C.

The packages addressed to Clinton and Obama contained explosive devices similar to one found Monday at the Bedford, N.Y., home of billionaire George Soros — a frequent contributor to Democratic and progressive causes. An explosive ordnance disposal team did a controlled detonation and destroyed the package.

Enlarge this image toggle caption Alex Wong/Getty Images Alex Wong/Getty Images

The package sent to CNN, which was addressed to Brennan, contained what "appeared to be a live explosive device" as well as an "envelope containing white powder," New York City Police Commissioner James O'Neill said at the news conference.

The package for Holder "did not reach its intended destination, but was rerouted to the return address in Florida," the FBI stated.

Police in Sunrise said Wednesday morning that they were "working on an investigation of a suspicious package near Sawgrass Corporate Parkway," which is near the office used by Wasserman Schultz.

President Trump, speaking at the White House, said that the "safety of the American people is my highest and absolute priority."

"As we speak, the packages are being inspected by top explosive experts, and a major federal investigation is now underway," Trump said. "The full weight of our government is being deployed to conduct this investigation and bring those responsible for these despicable acts to justice. We will spare no resources or expense in this effort."

The packages addressed to Clinton and Obama "were immediately identified during routine mail screening procedures as potential explosive devices and were appropriately handled as such," the Secret Service said in a statement Wednesday. "The protectees did not receive the packages nor were they at risk of receiving them."

The package to Clinton was intercepted late Tuesday, and the package to Obama was intercepted early Wednesday morning.

Clinton responded to the incident by saying "We are fine" and thanking the men and women of the Secret Service. Speaking at a Florida fundraiser for Donna Shalala, a former HHS secretary who is running for Congress, she said it is a "troubling time" and that "we have to do everything we can to bring our country together."

The NYPD's Miller stated that security officials were visiting offices of elected officials and media and television outlets Wednesday to inform them about what to watch for — and, in fact, he says NYPD officials were in the CNN mailroom when the suspicious package was discovered.

CNN broadcast images of a yellow mailing envelope addressed to former CIA Director John Brennan and Time Warner Center, also with a return address for Wasserman Schultz in Sunrise, Fla.

The explosive device inside was safely removed by the bomb squad using a "bomb truck," according to Miller, and authorities were working to transport it to FBI laboratories for further investigation, along with the other devices.

In a statement, White House press secretary Sarah Sanders said, "We condemn the attempted violent attacks recently made against President Obama, President Clinton, Secretary Clinton, and other public figures." She added, "These terrorizing acts are despicable, and anyone responsible will be held accountable to the fullest extent of the law."

"These attempted attacks that have been made are beyond criminal, they are acts of pure terror," said House Majority Whip Steve Scalise, who was shot and gravely wounded during an attack on a baseball practice of Republican lawmakers in 2017. "Violence and terror have no place in our politics or anywhere else in our society."

Like the Clintons, Soros lives in Westchester County, N.Y. The left-leaning philanthropist is the founder of the Open Society Foundations, which works to "build vibrant and tolerant democracies whose governments are accountable to their citizens." (The OSF has been a financial supporter of NPR.)

When the Obamas left the White House, they rented a house in D.C.'s Kalorama neighborhood that they purchased months later. The couple have said they want to remain in Washington, D.C., until their youngest daughter, Sasha, finishes high school.

Enlarge this image toggle caption Gershon Peaks/Reuters Gershon Peaks/Reuters

There also were multiple reports of suspicious packages on Wednesday that turned out to be false alarms.

Some media outlets had suggested that the White House had received one, but the Secret Service later clarified that "reports of a third intercepted package addressed to the WH are incorrect."

New York Gov. Andrew Cuomo told reporters at Wednesday's news conference that "a device has been sent to my office in Manhattan, which we were just informed about." Cuomo's office later said that "a preliminary investigation on the package at Gov. Cuomo's office shows it is computer files on the hate group The Proud Boys, who recently appeared in New York."

The downtown San Diego office of The San Diego Union-Tribune was briefly evacuated because of concerns about a possible suspicious package. That was later determined to be a false alarm and police gave the all-clear.

This is a breaking news story. As often happens in situations like these, some information reported early may turn out to be inaccurate. We'll move quickly to correct the record, and we'll only point to the best information we have at the time.</s>Explosive devices being sent in the mail. Troops being sent to the border ahead of a migrant caravan. Divisive rhetoric being called out.

With less than two weeks before the midterm elections, the nation is struggling with big issues. And with issues like these in the news all week, it's no wonder people are on edge.

We’re here to try and help you sort it all out.

Republicans and Democrats have different issues on their minds, according to a new USA TODAY/Suffolk University Poll. The top issue for Republicans, is immigration and border security. For Democrats and independents, the first issue is health care. But the one thing many Americans have in common is that President Donald Trump is driving the decisions of a majority of voters who say they are determined to send a message of either support or opposition to him. And that dynamic is giving Democrats an edge as the crucial campaign heads into the final stretch, according to the poll.

Authorities eye Florida in hunt for source of suspicious packages

Three more bomb-like devices were discovered Thursday, one in Lower Manhattan near the offices of actor Robert De Niro and two in Delaware addressed to former Vice President Joe Biden. That brings the total to 10. Investigators increasingly focused on mail streams in and out of Florida in the hunt for whoever sent these devices to high-profile critics and targets of President Trump. Most of the packages have been mailed in manila envelopes with bubble wrap interior, affixed with six Forever stamps and a computer-printed address label showing a return address for "Debbie Wasserman Shultz," a misspelled name for the Florida Democratic Congresswoman, according to the FBI. None of the 10 devices have exploded and no one has been injured.
• Suspicious packages result of Trump’s ‘violent’ rhetoric, critics say
• White House denies Trump’s rhetoric to blame

The Pentagon is preparing to deploy at least 800 troops to the U.S.-Mexico border to confront a migrant caravan that President Trump has described as a “national emergency,” administration officials said. The caravan of thousands of Central Americans heading toward the U.S. is more than 1,000 miles from the border, but Trump is increasingly seizing on it as an issue in the midterm elections, hoping images of migrants walking through Mexico will energize GOP voters in battleground states and tip the balance in the fight for control of Congress. Critics say the move is a "desperate political stunt" designed to stoke anti-immigrant fears ahead of the Nov. 6 elections.

Important updates to news you've been following
• Investigation moves from Kavanaugh to his accusers

A key Senate chairman asked the Justice Department on Thursday to investigate Julie Swetnick and her lawyer, Michael Avenatti, for allegedly false statements made during the confirmation process for Supreme Court Justice Brett Kavanaugh. Avenatti welcomed it: "Let the investigation into Kavanaugh and his lies begin.”

Saudi Arabian authorities changed their account again Thursday of how journalist Jamal Khashoggi was killed, for the first time calling his death a "premeditated" murder. The kingdom initially said he left the Saudi consulate unharmed. Then they said he died after a “brawl” escalated inside the facility. They reached the new conclusion after reviewing evidence given to them by Turkey.

NBC told USA TODAY that "Megyn Kelly Today" would air reruns for the rest of the week as rumors swirled her time on the NBC morning show is coming to an end. Her absence came two days after she angered viewers by defending blackface Halloween costumes. Her Wednesday episode largely centered on her on-air apology.
• “It is an exciting time to be a lottery player”

Move over Mega Millions, it's time for Powerball. The jackpot has ballooned to an estimated $750 million — the third-largest in U.S. lottery history. The estimated cash option, generally preferred by winners, is $428.6 million. The next drawing is Saturday.

The Short List is a compilation of stories from across the USA TODAY Network. It was brought to you by editors Cara Richardson and David Carrig.</s>Authorities are investigating a suspicious package that may have been sent to Joe Biden but was misaddressed, according to numerous reports.

CNN reported that the package is considered suspicious because it is similar to the bombs sent to various addresses across the country on Wednesday.

An analyst on MSNBC said that investigators believe the wrong address may have been written on the package and it could have been sent back - perhaps to the office of Debbie Wasserman Schultz.

Postal service workers have been made aware of the package possibly being in the mail system, Jonathan Dienst told MSNBC's Chris Hayes on Wednesday.

A beefed up security presence was seen outside the former vice president's home in Greenville, Delaware on Wednesday.

Investigators conducted a sweep of the premises and did not find anything suspicious, according to the Delaware News Journal.

The search was conducted by New Castle County Police.

There was no police activity in and around the home on Wednesday, authorities said.

The seventh threat was announced as federal authorities investigated a second suspicious package sent to Democratic Rep. Maxine Waters.

Officials flagged a piece of mail that was sent through a LA sorting office.

It forced the evacuation of a mall outside LA.</s>WASHINGTON/NEW YORK (Reuters) - Federal agents searched a U.S. mail facility near Miami on Thursday night in the race to find who sent 10 pipe bombs to prominent Democrats and critics of U.S. President Donald Trump as leads pointed to Florida as the packages' possible origin.

Investigators treated the devices as "live" explosives, not a hoax, said James O'Neill, the police commissioner of New York City, where two of the packages have turned up since Wednesday.

A federal law enforcement source told Reuters the devices were thought to have been fashioned from bomb-making designs widely available on the internet.

Investigators believe the packages, which were intercepted before reaching their intended recipients, went through the U.S. Postal Service at some point, that source said. None detonated and no one has been hurt.

Homeland Security Secretary Kirstjen Nielsen, in an interview with Fox News Channel, confirmed that at least some of the packages were mailed in Florida.

"Some of the packages went through the mail. They originated, some of them, from Florida," she said. "I am confident that this person or people will be brought to justice."

A bomb squad examined a mail distribution center near Miami where authorities believe several of the packages were processed, Miami police said.

Miami-Dade County Police said their bomb squad and its canine unit were on the scene in Opa-locka, Florida, as a precautionary measure, working alongside federal authorities.

Authorities have branded the parcel bombs, coming less than two weeks before national elections, as an act of terrorism, though they have declined to say how functional the devices were.

A number of bomb experts and security analysts said that based on the rudimentary construction of the bombs it appeared they were more likely designed to sow fear than to kill.

The first package surfaced on Monday at the Westchester County, New York, home of billionaire financier George Soros, a leading donor to the Democratic Party and various liberal causes.

On Wednesday, the FBI identified five more targets - President Barack Obama, former Secretary of State Hillary Clinton, former Attorney General Eric Holder, former CIA director John Brennan, and California Representative Maxine Waters. Two packages were found addressed to her.

Brennan's package was sent in care of the Manhattan bureau of CNN, where he has appeared as an on-air analyst.

On Thursday, the investigation widened with the discovery of three additional packages - two intended for former Vice President Joe Biden in his home state of Delaware and one for Hollywood actor Robert De Niro in Manhattan.

"It does remain possible that further packages have been or could be mailed," William Sweeney, assistant director of the Federal Bureau of Investigation, told an afternoon news conference in New York.

The FBI has said at least five of the packages bore a return address for the Florida office of U.S. Representative Debbie Wasserman Schultz, who formerly chaired the Democratic National Committee. Holder's package ended up rerouted and delivered to the Wasserman Schultz return address.

Sweeney said the manhunt for perpetrators involved hundreds of investigators nationwide.

The bombs have heightened what already was a contentious campaign season ahead of the Nov. 6 elections in which Trump's Republican Party will try to maintain majorities in the Senate and House of Representatives. Democrats have seized on the episode as a symptom of the harsh rhetoric Trump wields against his rivals.

Trump condemned the bombs but later blamed the media, his frequent foil, for much of the angry tone in the nation's political discourse.

No one has claimed responsibility, and the public was asked to report any tips. The parcels each consisted of a manila envelope with a bubble-wrap interior containing "potentially destructive devices," the FBI said. Each bore a computer-printed address label and six "forever" postage stamps, the agency said.

Some of the packages sent to New York locations had envelopes of white powder in them, but Sweeney's examination had shown the substance posed no biological threat.

Sweeney said all of the devices were being sent to the FBI's crime lab in Quantico, Virginia, for analysis.

Most of the intended recipients were high-profile Democrats and all were known to be outspoken critics of Trump, foils for his political rhetoric or both. Trump long questioned Obama's U.S. citizenship and referred to Clinton, whom he defeated in the 2016 presidential race, as "crooked Hillary." He has derided Waters publicly as "low-IQ Maxine." The president revoked Brennan's security clearance after the ex-CIA chief, a veteran intelligence official in Democratic and Republican administrations, lambasted Trump's Russia summit performance as "nothing short of treasonous." Biden once said he would have fought Trump if they were in high school, while De Niro received a loud ovation when he hurled an obscenity at Trump at the Tony Awards in June. At a Wisconsin rally on Wednesday night Trump, who has denounced news media organizations as an "enemy of the people," called attention to "how nice I’m behaving tonight” but on Thursday morning he attacked the media again. "A very big part of the Anger we see today in our society is caused by the purposely false and inaccurate reporting of the Mainstream Media that I refer to as Fake News," Trump wrote. "It has gotten so bad and hateful that it is beyond description. Mainstream Media must clean up its act, FAST!"
The United States Secret Service intercepts two suspicious packages described as "potential explosive devices" addressed to former President Barack Obama and former Secretary of State Hillary Clinton. One addressed to former CIA director John O. Brennan was received at CNN's New York studios, which were evacuated. Other politicians who received similar packages include U.S. Representatives Debbie Wasserman Schultz (whose name and address was on the return label of a package meant for former Attorney General Eric Holder but had the wrong recipient address) and Maxine Waters. Authorities are also attempting to locate a suspicious package sent to former Vice President Joe Biden that was marked return to sender due to a bad address.