US authorities have searched four locations in the New York City and Boston suburbs in connection with the attempted Times Square bombing, arresting two people on suspected immigration violations.
FBI spokesman Richard Kolko said the search warrants were in connection with the failed May 1 bombing but declined to comment on any link between the Boston area arrests and the bomb plot.
A separate FBI statement issued in Boston stressed that there was no known immediate threat to the public.
Vincent Lacerra, who lives across the street from a home raided in Boston, told The Boston Globe he was watching television when he heard a commotion outside and the words, “FBI! Don't move, put your hands up!”
He looked outside to see about 20 agents with guns drawn and pointed at the house, the Globe reported on its website.
Pakistani-American Faisal Shahzad was arrested aboard a Dubai-bound airliner two days after the crude car bomb was found parked in Times Square.
The 30-year-old has been charged with attempting to use a weapon of mass destruction and trying to kill and maim people.