BETHESDA, Md. (AP) — Four employees of a Bethesda post office became sick after becoming exposed to a black granular substance, but their injuries were not considered to be life-threatening.
Montgomery County Fire and Rescue Assistant Chief Scott Graham says three men and one woman were taken to the hospital Saturday with irritation to their skin.
Graham says firefighters were called to the scene for a report of a suspicious powder at about 10:30 a.m. but that authorities found no hazardous material. Further testing will be conducted.
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