Police locked down North Clayton High School and used hand-held metal detectors to search students after reports of a gun being seen on campus.
Clayton schools spokesman Charles White said officers escorted students from their classes to buses and to the parking lot as school dismissed.
White said the school was on lockdown for more than two hours Thursday afternoon as police searched backpacks and lockers.
Clayton police Sgt. Kevin Hughes said a student apparently saw another student with a gun. But police said they searched the
campus and did not find a weapon.