A marked police car has been set on fire in Mandurah.
Emergency services were called to Mandurah Toyota at the intersection of Anstruther Road and Pinjarra Road around 4.30am on Friday.
Police say the vehicle was undergoing a service at the time and was parked within the complex.
Investigations are ongoing.
Anyone with information is asked to contact Crime Stoppers on 1800 333 000 or report online at crimestoppers.com.au.