Northumberland OPP are investigating a case of a break-in and vandalism at Roseneath Public School.
Multiple alarms were reported to be coming from a portable at the County Road 25 school, with officers arriving to find the classroom trashed.
Investigators say the portable had been rummaged through, a number of window screens had been cut out of the main building, the window on a rear door had been smashed and various school supplies were scattered around the property.
Nothing has been reported stolen, but police are looking for who is responsible for the damage to the property.
Anyone with information can call Northumberland OPP or Crimestoppers.