A bomb threat is being investigated at Mar Vista High School in Imperial Beach, according to officials.
The sheriff's department received a call about six bombs placed on the campus located at 505 Elm St. just before 2:30 p.m. on Tuesday and students were released at the normal time.
The unknown caller also told police there was a shooter on the roof with a high-powered rifle. Authorities searched all the rooftops within a mile radius looking for the reported shooter, but were unsucessful.
Sheriff's deputies and Harbor Police officers are searching the school. The bomb/arson unit and the sheriff's department School Resource Officer also responded to the scene.
So far, police have not located any bombs and no injuries have been reported.
Check back for updates on this story.
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