The nationwide manhunt for the person or people who sent 10 potential bombs to critics of President Donald Trump and CNN's office in NY led authorities to a mail facility in South Florida on Thursday night.
The FBI has said that 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.
A 12th package, identified by police as a pipe bomb similar to others found across the country, was found at a US Post Office in Manhattan and the bomb squad were dispatched, NY police said.
The new packages, which resemble those containing explosive devices previously sent to figures including former president Barack Obama and former secretary of state Hillary Clinton, were located in DE and NY.
FBI officers investigating the serial mail bomber found two more suspicious packages on Friday, bringing the total to 12.
Hollywood megastar Robert De Niro and former USA vice president Joe Biden were the latest targets on Thursday of a spree of 10 devices and pipe bombs sent to opponents of Donald Trump as the president lashed out at the media for stirring up "anger".
FBI Director Christopher Wray said Sayoc mailed 13 explosive devices to former President Barack Obama, former Vice President Joe Biden, former Secretary of State Hillary Clinton, former Attorney General Eric Holder, U.S. Rep. Maxine Waters, D-Florida, Sen.
X-ray images show that the package addressed to De Niro contains a device similar to the pipe bombs found in other packages this week that were addressed to prominent Democrats, the two sources said. Officials are trying to determine if the sender or senders was trying to sow fear or actually cause physical destruction. "Mainstream Media must clean up its act, FAST!" he wrote.
"There's something more powerful than bombs, and that's your vote", the 75-year-old Hollywood star said.
Before the package arrived there, the Herald reports it was rerouted through the Opa-locka mail sorting facility.
"We are investigating all of this with great precision and I can say with certainty that we will identify and arrest a person or people responsible for these acts", said NYPD Commissioner James P. O'Neill. CNN President Jeff Zucker sent a message to staffers saying the package was intercepted at a post office, and he reiterated that "all mail to CNN domestic offices is being screened at off-site facilities".More news: Red Sox take a 2-0 lead
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The package targeting Clapper was addressed to him in care of CNN.
Clapper said on CNN Friday morning he was not surprised he was targeted and said the incidents were "serious".
The FBI said the packages each consisted of a manila envelope with a bubble-wrap interior containing potentially destructive devices. It was found at a New York City postal facility and was similar to the other packages, the official added.
De Niro spoke about the incident in a statement, saying, "I thank God no one's been hurt, and I thank the fearless and resourceful security and law enforcement people for protecting us".
Suspicious packages have been seized in New York, Washington, D.C., Florida and California.
A wide investigation continues, with the FBI, the Postal Service and other federal agencies working with state and local authorities.
The packages stoked nationwide tensions and fears as voters prepared to vote November 6 to determine partisan control of Congress - a campaign both major political parties have described in near-apocalyptic terms.
Brennan responded, tweeting that Trump should "Stop blaming others". He has a criminal history and ties to NY, the sources added.
"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 NY. The official said the devices were made from PVC pipe and covered with black tape. De Niro's office is located in the TriBeCa Film Center in lower Manhattan, and also includes an upscale restaurant and private screening room.
A picture from CNN of the package sent to Robert De Niro.
The first such package had been discovered on Monday at the NY home of George Soros, a billionaire activist known to fund pro-democracy and liberal political groups.