Parts of NY station closed after terror threat

Authorities in New York today closed part of Penn Station as commuters headed to work under the watchful eyes of police after a newly disclosed terror threat against the city's subway system.

Workers in hazardous material suits, National Guardsmen and police with dogs were at the transportation hub beneath Madison Square Garden by late morning.

"We do have a police situation at Penn Station," said Amtrak spokeswoman Marice Golgoski, who declined to elaborate. "The Amtrak police and the NYPD are involved."

One of the main entrances was closed off with yellow crime scene tape and a portion of the concourse above the tracks was also sealed to the public.

According to Golgoski, Amtrak was still boarding some trains and operating some ticket windows despite the problems.

A mile away at the Port Authority Bus Terminal, more officers were visible on the streets, and one lane of traffic on Ninth Avenue was reserved for emergency vehicles.

Officials in New York revealed the threat yesterday, saying an FBI source warned that terrorists had plotted to bomb the subway in coming days. But Homeland Security officials in Washington downplayed the threat, saying it's of "doubtful credibility".