Schools across U.S., including San Diego receive threatening phone calls

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SAN DIEGO — Anonymous threats of violence prompted precautionary lockdowns and searches at several schools in San Diego County and across the United States Monday.

Clairemont and Lincoln high schools, Oneonta, Bonsall West and Willow elementary schools were among those to receive telephone threats Monday.

Schools in Utah, Delaware, Colorado. Massachusetts, Wisconsin and Wyoming also reported receiving similar threats around the same time.

A caller with a man’s voice telephoned Clairemont and Lincoln campuses about 11:30 a.m. and made menacing statements, according to San Diego Unified School District officials. It was unclear if the same person was responsible for both threats.

Teachers kept students secured in their classrooms while campus and city police searched the grounds and buildings, SDUSD spokeswoman Linda Zintz said. Nothing hazardous had been found as of early afternoon.

Zintz said she was unaware of the exact nature of the threats.

Bonsall students were evacuated while officers searched the school.  School was then canceled for the remainder of the day.

Oneonta and Willow elementary schools were searched by police and cleared.