The Price County Sheriff's department received a call at 8:27 a.m. on Thursday, Sept. 27 from the Prentice School District Administrator who reported finding a note written on a wall inside the school.
The note indicated there was a threat to those in the school. Students and staff were evacuated.
Officers from the Price County Sheriff's Office, Wisconsin State Patrol and Wisconsin Department of Natural Resources responded, along with members of the Prentice Fire Department and Prentice Ambulance Service.
The school was cleared for a safe return of the students and staff.
No one was injured.
The investigation is ongoing at this time.