Investigations are underway after cars were reportedly damaged at the Port Augusta Racecourse on Wednesday.
Police are alleging that vandals poured a large amount of white paint over a blue Holden Ute as well as several other vehicles that were parked on racecourse road.
The incident is thought to have occurred between 10:30 am and 1pm on Wednesday.
Anyone who may have witnessed suspicious behaviour at the racecourse is asked to contact Crime Stoppers.
Police are also urging other car owners that may have had their cars damaged to come forward.