"A suspicious package addressed to actor-director Robert De Niro was reported early Thursday at the Manhattan building where his production company is based, and its marking and contents appear similar to pipe bomb packages recently mailed nationwide to top Democrats, two law enforcement sources said", CNN reported.
Authorities swept Biden's Greenville, Del., home Wednesday and found nothing suspicious, the Delaware News Journal reported.
An FBI bomb squad transported a suspicious package through the streets of NY early Thursday morning after it was sent to the Tribeca restaurant owned by actor Robert DeNiro. Helicopter footage from the NBC affiliate in Philadelphia, Pa., showed a bomb squad member inspecting something with the help of a robot outside a postal facility.
The second suspicious package was found at a post office on the 1500 block of Lancaster Avenue in Wilmington, Thursday morning.
The US Secret Service intercepted packages addressed to Obama at his Washington home and to Clinton, the 2016 Democratic nominee for president, at the NY state home she shares with former president Bill Clinton.
All the targets are frequently maligned by right-wing critics, including former president Barack Obama, former presidential candidate Hillary Clinton and Mr Obama's attorney-general Eric Holder.
An eighth device was discovered early Thursday at an office in NY associated with actor Robert De Niro.
US President Donald Trump has called on the media to stop their "endless hostility" and "false attacks" in comments addressing a number of pipe bombs sent earlier in the day to Barack Obama and Hillary Clinton.
At an event in Texas on Wednesday, Mr Brennan criticised Mr Trump for frequent inflammatory rhetoric.
Several locations in the Washington, D.C., and NY areas and Florida received suspicious packages this week. "It has gotten so bad and hateful that it is beyond description".
Debbie Wasserman Schultz: Suspicious package found on Wednesday in the building where Florida Congresswoman Schultz's office is located.
The package has been placed in an NYPD bomb containment truck. A vehicle, said to be used to transport bombs, carries away the suspicious package delivered to Robert De Niro's NY restaurant.
New York Governor Andrew Cuomo told CNN some of the packages in his state were hand-delivered and that authorities were scrutinising security camera videos for signs of the bomber. The five packages discovered Tuesday and Wednesday had a similar return address: That of Democratic Rep.
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".
Trump said that in his view, the media held some responsibility for the current political climate of division and distrust between Americans. Mainstream Media must clean up its act, FAST!'
"Any acts or threats of political violence are an attack on our democracy itself", Trump said.
Some of his supporters have said they believe the packages are part of a Democratic plot to win votes in the mid-terms, but there is no evidence for this.