Several cars in the Hochsauerlandkreis were allegedly shot at with an air rifle.
A total of three vehicles that were on the road in Sundern on Sunday were damaged, the police said on Monday.
All three had been shot several times.
"Based on the damage, the police assume that an air rifle was used," said the officers.
Sundern - Nobody was injured.
The police are now hoping for clues about possible perpetrators.
dpa