Two men have died and two children have been injured in a collision between a motorcycle and a ute in Perth's southern suburbs.
Police said the bike and car collided at the intersection of Surf Drive and Warnbro Sound Avenue in Secret Harbour about 5:20pm yesterday.
Pictures from the crash scene show the ute lying on its side with significant damage to its driver's side doors, and the wreckage of the bike lying in front of the vehicle.
The 20-year-old motorcycle rider died at the scene of the crash.
The driver of the ute, a 32-year-old man, also received fatal injuries and died at the scene.
His two passengers, a 12-year-old girl and a four-year-old boy, suffered minor injuries and were taken by St John Ambulance to Perth Children's Hospital for treatment.
Major crash investigators urge any witnesses or anyone with information to contact Crime Stoppers on 1800 333 000.