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US officials have said they are investigating a credible but unconfirmed threat of a terror attack, reportedly involving bomb-laden vehicles ahead of this weekend’s 10th anniversary of the 9\/11 attacks. “There is specific, credible but unconfirmed threat information,” the Department of Homeland Security said in a statement on Thursday.
“We have taken, and will continue to take all steps necessary to mitigate any threats that arise,” the department added in a statement.
Law enforcement sources said a manhunt was under way for two or three suspects, the Reuters news agency reported.
US officials said the threat involved New York City and Washington DC; the sites involved in the al-Qaeda attacks a decade ago this Sunday that killed nearly 3,000 people.
The White House confirmed that US President Barack Obama had ordered that counter-terrorism efforts be stepped up.
At a press conference on Thursday, Michael Bloomberg, New York’s mayor, said the city was deploying additional police resources around the city to keep residents safe.
“We take all threat reporting very seriously,” he said. “We continue to ask the public to remain vigilant as we head into the weekend.”
But Bloomberg added: “There is no reason for any of the rest of us to change anything in our daily routines.”
Al Jazeera’s Cath Turner, reporting from New York, said that authorities had warned of a possible car or truck bomb threat.
“There is going to be more security measures and presence around bridges, tunnels, subways and any other kind of public transport,” our correspondent said.
“There are threats every day to New York City but obviously this one was considered significant enough to come out and warn the public,” she added.<\/p>\n