The back passenger window of a car was smashed after a group of boys were seen throwing stones in Brixworth.
The three boys, aged 14 to 15 and wearing hooded tops, were throwing stones in Froxhill Crescent.
One of the stones hit the car, which was parked in a driveway, causing the glass to smash.
The boys then ran away towards St David’s Park.
The incident happened at around 8.30pm on Thursday, May 19.
Anyone with information can contact Northamptonshire police on 101. Alternatively, they can call the independent charity Crimestoppers anonymously on 0800 555 111.