Federal authorities made an arrest on Friday in connection with the nationwide bombing campaign against outspoken critics of President Trump.
It was not immediately clear who had been taken into custody, but a man was arrested in Florida, three law-enforcement officials said. One of them said the man was in his 50s.
Although no charges have been filed yet, two of the law enforcement officials said there was a high likelihood that the man would be prosecuted at least in part in Federal District Court in Manhattan. The F.B.I.’s New York office has been leading the investigation and five of the bombs sent this week fall under the jurisdiction of the United States attorney’s office in Manhattan.
The arrest came only hours after the mysterious spate of pipe bombs spread further as federal authorities said on Friday morning that they had found two more of the explosive devices: one addressed to Senator Cory Booker and the other to James R. Clapper Jr., the former director of national intelligence.
The package addressed to Mr. Clapper was meant to be delivered to the New York offices of CNN, where he works as an analyst, but was intercepted at a mail facility in Midtown Manhattan, police officials in New York City said. The package addressed to Mr. Booker, a New Jersey Democrat, was found in Florida, which two people briefed on the matter have said has become a focus of the intense, nationwide investigation into the bombs.
At a news conference on Friday morning, John Miller, the New York Police Department’s deputy commissioner of intelligence and counterterrorism, said a postal worker at the mail facility on 52nd Street recognized the package addressed to Mr. Clapper as similar to other suspicious packages discovered this week and “froze it in the system.”