San Jose police on Thursday issued an all-clear signal after investigating an "unverified bomb threat call" at Willow Glen High School, the department said.
San Jose police said no suspicious devices were found at the high school following a bomb threat earlier in the day.
Police were alerted to the threat at 2:43 p.m., police said. Students were evacuated as a precaution while officers searched the campus.
At about 5:35 p.m., police said the campus had been cleared.
Parents were instructed to pick their children up on Cherry Avenue.
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