More White Powder Envelopes Found at Federal Buildings

Suspicious envelopes containing white powder were found on Monday at eight federal office buildings in Idaho, Utah and Washington state, Ed O'Keefe reports.

The letters were discovered at various offices in Coeur d'Alene, Boise and Pocatello, Idaho; Salt Lake City, Utah; and Seattle, Bellevue and Spokane, Wash.

So far, no injuries have been reported, and initial tests on the envelopes have come back negative. The Associated Press reports that a field test on the substance found in Bellevue showed that its major component was calcium carbonate.

The FBI is conducting an investigation into whether the envelopes are linked, which certainly seems likely.