CITRUS HEIGHTS, Calif. (KTXL) — The shelter-in-place at San Juan High School has been lifted after the Citrus Heights Police Department determined a threat was a hoax.

At around 10:43 a.m., San Juan High School was under a precautionary shelter-in-place order after the school received a suspicious phone call, according to an alert on the school’s website.

“Regular school functions are continuing as normal and the school has just started the normally scheduled lunch period,” the school’s message read Tuesday afternoon.

Citrus Heights Police also released a statement after 12 p.m., saying their “officers are currently at the school. Please do not come to the school at this time.”

A spokesperson from the school told FOX 40 News that there’s a possible explosive device on campus and that a suspicious call was received.

The campus is located near Greenback Lane and San Juan Avenue, in the City of Citrus Heights.

After searching the campus, Citrus Heights police said nothing suspicious was locating and school is resuming activities as scheduled.