Three drivers were lucky to escape without injury after rocks were hurled at their cars in Erskine last Friday night, May 15.
Mandurah Detectives are investigating the three incidents, which occurred on Old Coast Road between 9pm and 9.40pm causing damage to the passing cars.
Detectives are linking the three incidents and wish to speak to anyone that may have dashcam or CCTV footage in the area of the intersections of Seascape Boulevard or Oakleigh Drive.
Anyone with any information about the incidents is asked to contact Crime Stoppers on 1800 333 000 or report the information online at crimestopperswa.com.au