Multiple anthrax scares in Alabama

Anthrax scares were set off in five Alabama cities following the delivery of envelopes containing white powder.

The envelopes resulted in two federal courthouses shutting down and one congressman becoming trapped in his office while authorities tested the white powder. No one was injured during the scare.

Authorities believe that at least five of the letters, which were sent to the offices of senators or congressmen, were from the same source.

The letters were sent to the Mobile and Foley offices of Republican Rep. Jo Bonner, who, along with her staffers, was required to remain in her Mobile office while the white substance was tested.

"Each letter contained a small bag with a white powdery substance, and neither of these bags were opened," Mike Lewis, a spokesman for Bonner, told the Atlanta Journal Constitution.

The letter sent to Bonner's office was found to contain a common household product, though officials would not elaborate.

"From what we are hearing that's consistent with some of the other cases," Foley Fire Chief Joey Darby told the Atlanta Journal Constitution.

Letters were also sent to the offices of U.S. Rep. Mike Rogers and U.S. Senators Jeff Sessions in east Montgomery and Richard Shelby in the downtown Montgomery federal courthouse.

The FBI was informed by employees of the suspicious letters at around noon on Monday and initial tests have shown the substance is not anthrax.

The federal courthouse in Anniston and the federal courthouse in Birmingham also received letters containing the substance.