A Murray Bridge school on Burdekin Avenue was the target of vandalism over night.
Local police are investigating the damage after five windows were smashed in around 2.30am on Tuesday, February 14.
A member of the public reported hearing the glass being smashed from the school grounds.
Patrols attended and located five damaged windows however a search of the area failed to locate anyone.
Police are asking anyone who may have seen or heard anything suspicious to contact Crime Stoppers on 1800 333 000.