A car sunroof was damaged in St Peters Way car park, Northampton.
The incident happened sometime between 3.30pm and 4.45pm on Tuesday, 21 June.
The vehicle, a black Honda Accord, was parked in the middle of the car park near some bushes and shrubs. When the owner returned to the car, they found the sunroof had been smashed.
Witnesses or anyone with any information is asked to Northamptonshire Police on 101. Alternatively, they can call the independent charity Crimestoppers anonymously on 0800 555 111.