Major Crash officers are investigating a fatal crash that occurred in Cooloongup on Tuesday afternoon.
A grey Suzuki Swift was traveling along Willmott Drive before it swerved and struck a concrete power pole.
The 40-year-old male driver received critical injuries and was taken to Rockingham Hospital, before being transferred to Royal Perth Hospital where he later died.
Major Crash investigators would like to speak to anyone who saw, or has dash-cam footage of the Suzuki Swift prior to the crash.
Anyone with information is urged to call Crime Stoppers on 1800 333 000 or report it online at http://www.crimestopperswa.com.au.