Deputies investigating after unsubstantiated bomb threat, lockdown at Antelope High School

A bomb threat that placed Antelope High School on lockdown Wednesday afternoon for about an hour was unsubstantiated, according to the Sacramento County Sheriff’s Office.

Deputies went to the school at about 2 p.m. and lifted the lockdown within the hour. A bomb wasn’t found, said Amar Gandhi, a spokesman for the Sheriff’s Office.

It wasn’t clear who threatened the school, he added. The investigation was ongoing and deputies remained on campus as the school returned to normal before the normal 3:20 p.m. dismissal.

It was the second incident involving a threat of explosives at a school on Wednesday. Officials in Davis searched eight locations around the Yolo County city, including at four school campuses, after someone emailed a bomb threat to officials around 2 a.m.

Authorities gave the all-clear to the school sites, a library and a school district office around 8 a.m.