About 7.40pm, a blue Kia Stonic station sedan and a white Toyota Rav4 collided at the roundabout of Watsonia Road and Ridge Hill Road.
The 67-year-old male driver of the Toyota and a 64-year-old female passenger; as well as the 24-year-old female driver of the Kia, all sustained critical injuries in the crash and were conveyed by ambulance to Royal Perth Hospital for medical treatment.
Major Crash investigators are urging anyone who saw the crash, or the Toyota Rav4 or the Kia Stonic station sedan travelling in the area prior to the crash, to contact Crime Stoppers online at www.crimestopperswa.com.au or call 1800 333 000.
Anyone with dash-cam or mobile phone vision relating to this crash, can upload the vision directly to investigators via this link:
https://wapf.au.evidence.com/axon/community-request/public/seriouscrash…
If you or anyone you know has been affected by a road crash, contact Road Trauma Support WA on 1300 004 814.
The WA Police Force continues to urge all motorists to take care on the road. Drive safely and keep in mind the wellbeing of yourself and others.