Police in Lancaster are looking for vandals who carried out a spree of attacks on cars.
The spate of criminal damage happened on Dale Street overnight on Saturday.
Lancashire police received a dozen reports of vehicles being targeted on the even numbered side of the street but suspect there may be more victims.
Officers from the local neighbourhood team have conducted house to house enquiries on the street and would encourage anyone who has any information into these offences to come forward.
PC Gill Syer of Lancaster Police said: “This is a pointless crime that has created a lot of heartache for the residents of Dale Street who live in a lovely community.
“Whoever has caused this damage should come forward and face the consequences for their mindless behaviour.”
Call Lancashire police on 101 with information.