Mooroolbark Police are investigating a vandalism spree targeting vehicles in Launching Place.
They said vandals smashed windows and slashed tyres on at least seven vehicles parked in Matthews Court and Woodleigh Court about 1.30am on Wednesday 22 May.
Police said a letter box was also damaged.
They urged any other victims to report the matter to Mooroolbark Police Station on 9725 9999.
Anyone with information about the vandalism spree should also call the station or call Crime Stoppers on 1800 333 000.