Police are investigating a bomb threat to Fox Valley Lutheran High School.
School administration notified the Appleton Police Department of the threat at 2:15 Monday afternoon.
Police sent K-9 units at the Outagamie County Sheriff's Department did a sweep of the school with assistance from the Outagamie and Brown County bomb squad.
Officers say no items of concern were located at the school.
Investigators are continuing to work to identify the source of the threat.
Anybody with information is asked to call Appleton Police at 920-832-5500.