The campus of Gompers Prep School in San Diego was evacuated Thursday after a suspicious device was found on campus, officials said.
The report came in to San Diego Police and San Diego Fire-Rescue at 10:35 a.m.
Classrooms were evacuated.
MAST investigators were on scene at the campus on 47th Street near Hilltop Drive.
As of 1:30 p.m., the campus was given the all clear and parents began lining up to pick up students.