foxnews.com
Sensors at two military mail facilities in the Washington area detected signs of anthrax on two pieces of mail, but the mail had already been irradiated, rendering any anthrax inert, defense officials told FOX News late Monday.
Officials weren't sure if this was an attack. Additional tests and other sensors at the two facilities, one of them at the Pentagon and the other nearby, found no presence of the bacteria, which can be used as a biological weapon. There were no initial reports of illness.
The Pentagon's mail delivery site, which is separate from the main Pentagon building, was evacuated and shut down Monday after sensors triggered an alarm around 10:30 a.m. EST, spokesman Glenn Flood said. It was expected to remain closed until at least Tuesday while the investigation continued.
While subsequent tests proved negative, the appearance of the bacteria is now the target of a criminal investigation by the FBI, Centers for Disease Control and Prevention and local law enforcement. The substance will be further tested at a facility at Ft. Meade, Md.
It was not clear when sensors at the second Defense Department mailroom were triggered Monday, and Pentagon officials only said a nearby satellite mail facility was closed. But firefighters in nearby Bailey's Crossroads, Va., reported that a military mailroom had been shut down after a hazardous material was detected, and no one was allowed to leave that building.