Rocks were thrown at vehicles travelling along Oakley Road, Corby.
The incident happened at about 8pm on Friday, April 19.
A police spokesman said: “Objects, believed to be rocks, were thrown from behind the wall of the snooker hall at two vehicles travelling westbound along Oakley Road.
“As a result, the windscreen of one of the vehicles was scratched and the door panel of the other was dented.”
Witnesses are asked to call the police on 101.