Police are hunting vandals who smashed three windows at a junior school.
Overnight between Friday and lunchtime on Saturday, the offenders struck at Unstone Junior School on Main Road, Unstone.
A rubber mallet was found left behind at the scene.
Officers are carrying out house-to-house enquiries in the area.
Witnesses or anyone with any information should call PCSO Rachael Silvers on 101, quoting crime number 14934/15.
Alternatively, call Crimestoppers on 0800 555 111.