White powder found at Johnson County Courthouse not hazardous, investigators say

Olathe firefighters and Johnson County Sheriff’s deputies stage in the the north parking lot of the Johnson County Courthouse on Thursday. Two members of Olathe Fire’s hazmat team are suited up in yellow. Photo credit Mike Frizzell.

Updated: Thursday, March 24, 9 p.m.

The Johnson County Sheriff’s Office says a white powdery substance found in the Johnson County Courthouse’s mailroom Thursday morning has been tested and found to be not hazardous.