UPDATE: Officials have given the all clear at Temescal Canyon High School. Classes have resumed their normal schedule.
Original story follows below:
Temescal Canyon High School in Lake Elsinore was placed on lockdown Friday morning due to "suspicious circumstances." The school was placed on lockdown as a precaution.
Officers are on scene.
According to a tweet from the Riverside County Sheriff's Department, the situation is not being treated as an "active shooter" scenario.
The campus is being searched as a precaution the sheriff's department said.
Students will remain locked inside their classrooms until authorities can complete the inspection.
This is a breaking news story. More information will be added as it comes in.