A bomb threat briefly emptied South Hagerstown High School on Monday morning and police were searching for the caller who caused the disruption.
At approximately 9:15 a.m. a student aide answered the office telephone and the caller said there was a bomb in the school, according to Principal Michael Shockey. "It sounded like an adolescent," he said.
The school was evacuated for an hour as police, teachers and administrators searched the building. They determined South was secure at 10:30 a.m. and students returned from the parking lot as classes resumed.
The incident led to a shorter interruption than the May 4 evacuation of Boonsboro High School. It was the latest in a series of threats following the April 20 massacre at Columbine High School in Littleton, Colo.