Police-car-backA janitor is facing charges in connection with the lockdown of several buildings in a northwest Iowa school district.

The principal at an elementary school in Spencer called police Tuesday morning and reported custodian Larry Fuller was being aggressive and confrontation with other staff members.

Fuller left the school before officers arrived, but allegedly threatened schools and law officers when he was reached by phone. Three schools were locked down as a precaution.

Police arrested Fuller as he attempted to leave his home. He’s charged with making terrorism threats and simple assault.

(Reporting by, Ryan Long, KICD, Spencer)