Lockdown lifted at Oaks Middle School in Ontario after police investigate suspicious package

ONTARIO, Calif. (KABC) -- Oaks Middle School in Ontario was placed on a brief lockdown Friday due to a suspicious package, according to the school district.

"We are currently investigating a suspicious circumstances call at Oaks Middle School. Officers are currently on scene and conducting their investigation," said the Ontario Police Department.

Children remained in class during the lockdown. The lockdown was lifted about an hour later.

No further information was immediately available.