Major Crash officers are investigating a serious crash that occurred in Baldivis on Friday.
A green Kawasaki motorcycle and a silver Nissan X-Trail collided at the intersection of Kingcote Road and Linaker Street around 5.30pm.
The rider of the motorcycle, a 50-year-old man, received serious injuries and was taken to Royal Perth Hospital.
The driver of the Nissan was not hurt.
Anyone who witnessed the crash, saw either the motorcycle or Nissan prior to the crash, has dashcam footage or has any information is asked to call Crime Stoppers on 1800 333 000 or report online at www.crimestopperswa.com.au.