- Video report by ITV News Washington Correspondent Robert Moore
Former vice president Joe Biden is the latest target of a campaign of attempted mail bombings in the US, targeting high profile Democrats and media figures.
Two separate packages addressed to Biden were found at a postal facility in Delaware, and that the devices were similar to those sent to others over the past week.
Earlier on Thursday a suspicious device was removed from a restaurant owned by the actor Robert De Niro, who has been an outspoken critic of president Donald Trump.
Trump himself continued to make incendiary comments regarding the media's reporting, saying that it was behind the reason many in the country were angry.
"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," Mr Trump said in a tweet.
"It has gotten so bad and hateful that it is beyond description. Mainstream Media must clean up its act, FAST!"
The billionaire philanthropist George Soros was the first target in a slew of incidents, with Bill and Hillary Clinton, Barack Obama and CNN's HQ in New York also sent the explosive devices.
All the targets so far are critics of the president, who has condemned the actions of those responsible.
US news network CNN was forced to evacuate its offices in New York on Wednesday following the discovery of a pipe bomb in a suspicious package.
While the programme was on air and the presenters were discussing the other suspicious packages an evacuation alarm was sounded.
Bomb squads were seen posted outside of CNN's office, which is based in the Time Warner Center.
Later, FBI officials confirmed that a suspicious package had also been sent to Democrat congresswoman Debbie Wasserman Schultz.
Who has been targeted:
- Clintons: suspected explosives
- Obamas: suspected explosives
- CNN office (New York), addressed to former CIA Director John Brennan: suspected pipe bomb
- Debbie Wasserman Schultz (Democrat congresswoman): suspicious package
- Andrew Cuomo (New York governor)
- George Soros
- Maxine Waters (Democrat congresswoman): suspicious package sent to her Washington office, but was intercepted
- Attorney General Eric Holder - the package did not reach its intended destination and sent to the return address
- Robert De Niro
- Joe Biden
The suspected bombs are believed to be linked to one found on Monday at the compound of billionaire George Soros.
Trump called for unity in the wake of the incidents.
The US President's comments are markedly different from his previously inflammatory remarks about opponents, who he has described as criminals and argued that they will destroy the country if they win control of Congress.
"We want all sides to come together in peace and harmony," he said at a campaign rally in Wisconsin. "Any acts or threats of political violence are an attack on our democracy itself."
The president highlighted the unusually subdued tone of his remarks.
"By the way, do you see how nice I'm behaving tonight?" he said. "Have you ever seen this?"