Frederick County Middle School Cleared After 'Unknown Irritant' Released
BALTIMORE (WJZ) -- A Frederick County middle school was evacuated Friday after the release of what authorities described as an "unknown irritant."
The incident was reported shortly before 11 a.m. at Ballenger Creek Middle School in Frederick, according to the Frederick County Sheriff's Office.
It was not immediately clear Friday morning what kind of irritant was involved or who was responsible for its release.
Authorities cleared the school following the incident, and students were later allowed to return to classrooms.
Additional details were not immediately released.
