Unknown substance being treated with extreme caution.
A suspicious powder found in the Oregon Department of Revenue mailroom in Salem has led to an evacuation there.
Oregon State Police are investigating.
They said an employee on the first floor found the unknown powder substance and reported it between 6:30 and 7 a.m., roughly one hour before the Department of Revenue was to set open for business.
Karen Brown, who works at the Department of Revenue, said she arrived at work at 6:30 a.m. and quickly learned of the evacuation.
Full story: KPTV.com