A device similar to those sent to Hillary Clinton, Barack Obama and others was found Thursday, addressed to Mr. De Niro at his production company in Manhattan.
An explosive addressed to Robert De Niro was found Thursday morning at his production company in Lower Manhattan, the latest in a wave of similar devices sent to several prominent Democrats who have been the rhetorical targets of President Trump and several right-wing figures.
Security personnel at TriBeCa Productions called the New York Police Department about a suspicious package, and the department’s bomb squad X-rayed it and detected an explosive much like those sent to former President Barack Obama, former Secretary of State Hillary Clinton and others, officials briefed on the matter said.
Federal, state and local investigators in New York, Washington, Florida and Los Angeles are involved in the widening case, which has not resulted in any injuries but has sent a shock through the nation’s political and media establishments.
The first bomb was found on Monday at the home of George Soros, the billionaire advocate of liberal causes, in Westchester County, north of New York City.
On Wednesday, officials revealed that similar devices, all contained in manila envelopes, were sent to several people, including Mr. Obama, Mrs. Clinton, and Representative Maxine Waters of California — all Democrats.
Another bomb, addressed to John O. Brennan, Mr. Obama’s C. I. A. director, was sent to the offices of CNN in Midtown Manhattan. And yet another was sent to Eric H. Holder, Jr., the attorney general under Mr. Obama, but because it was addressed incorrectly, it went to the return address on the package — the offices of Representative Debbie Wasserman Schultz, a Florida Democrat and former chairwoman of the Democratic National Committee.
None of the devices harmed anyone, and it was not immediately clear whether any of them could actually have exploded. It was also not clear whether they were the work of one person or multiple people.
