Police Seal Kerry Campaign Building

Suspicious letter/package:

WASHINGTON — Police sealed off the office building that houses Sen. John Kerry's presidential campaign headquarters on Thursday after finding a suspicious letter, authorities said.

The letter at the downtown office building brought out emergency personnel, said Alan Etter of the District of Columbia Fire and EMS Department. He said he didn't know what made the letter suspicious.

"There's lots of these things every week," said Etter, adding that he expected the scene to be cleared shortly.

An e-mail distributed to Kerry staff said: "There is a suspicious package found on one of the floors of the building. Emergency services, fire, police and hazmat are on site. Please be advised if you leave, you will not be allowed to re-enter until authorities have given the all clear."