WASHINGTON COUNTY, Mo. (KMOV.com) - A stretch of northbound Highway 21 in Washington County, Mo. was closed for several hours on Friday night due to a pipe bomb.
Authorities said the pipe bomb was located on Highway 21 north of Simpson Road, which is located north of Potosi.
The St. Louis Regional Bomb Squad was called in.
Authorities say traffic was being diverted across Highway E and Highway 47.
All lanes of Highway 21 re-opened around 9:30 p.m.
Another pipe bomb was found in Washington County in December.