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San Ramon police find nothing suspicious at Cal High after phoned threat

SAN RAMON -- San Ramon police found nothing suspicious in a search of California High School after a threat was called in earlier Wednesday.

The San Ramon Police Department tweeted that officers were investigating the threat Wednesday afternoon at around 2:10 p.m.

Police used drones in the search of the campus. The department said on social media shortly before 3 p.m. that officers will maintain a heavy presence at the school until students depart for the day.

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