WASHINGTON (AP) - Faisal Shahzad, the man arrested Monday in connection with the failed plot to detonate a car bomb in New York's Times Square, was trying to board a flight to Dubai when he was apprehended, Attorney General Eric Holder said Tuesday.
Holder said Shahzad, a U.S. citizen, was detained by agents from Customs and Border Protection at New York's John F. Kennedy International Airport.
The attorney general described the investigation as "multifaceted" and said federal, state and local authorities are continuing to pursue a number of leads. "As we move forward, we will focus on not just holding those responsible for it accountable, but also on obtaining any intelligence about terrorist organizations overseas," he said.
Holder suggested authorities may be searching for more suspects, saying, "We will not rest until we have brought everyone responsible to justice."
"It's clear that the intent behind this terrorist act was to kill Americans," Holder said. "It's important that the American people remain vigilant."
Officials who spoke to The Associated Press early Tuesday on the condition of anonymity because of the sensitivity of the investigation said Shahzad had recently returned from a five-month trip to Pakistan, where he had a wife.
Shahzad, who has a Shelton, Conn., address, was being held in New York.
Shazam!
"He's admitted to buying the truck, putting the devices together, putting them in the truck, leaving the truck there and leaving the scene," the law enforcement source told Reuters, speaking on condition of anonymity.
"He's claimed to have acted alone. He did admit to all the charges, so to speak," the source said, adding that investigators were still looking into his activities during a recent trip to Pakistan.
If links were found between the failed Times Square bombing and Pakistan's Taliban, which claimed responsibility for it, Pakistan could come under renewed U.S. pressure to open risky new fronts against Islamic militants.
Pakistan vowed to help the U.S. investigation.
Shahzad, who received U.S. citizenship last year, recently visited Pakistan for about five months, returning to the United States in February, the source said.
"Based on our collective experience it's hard to really believe that this is something someone would do on their own. It seems hard to pull off alone. There's a lot we don't know yet," the source said.