Branches of the Idaho U.S. Attorney’s office received in the mail Monday a suspicious white powder commonly associated with chalk, The Spokesman-Review reported Tuesday.
The nontoxic substance of calcium carbonate was sent to the branches in Boise and Coeur d’Alene, in addition to other federal offices in Idaho, Washington and Utah. Thomas E. Moss has led the Idaho U.S. Attorney’s Office since 2001.
Threatening letters accompanied the powder. But FBI special agent Frank Harrill declined to elaborate, telling the newspaper that the investigation is “very active.”
KREM 2 News in Spokane, Wash., reported that many of the envelopes were postmarked from the city. A bomb was found in March outside the Thomas S. Foley U.S. Courthouse in Spokane.
Harrill told The Spokesman-Review that there is no indication of a connection between Monday’s letters and the bomb incident, which is still under investigation.
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