As police repeat their warnings for motorists to exercise greater care on country roads, a Kalbarri man is in a critical condition after his utility rolled over while travelling on the Brand Highway this morning.
The man and two passengers, all three aged in their late 40s, were injured in the accident, which occurred near the Cooljarloo mine entrance north of Cataby about 9.30am today.
Paramedics treated the injured at the scene and the man was flown to Perth by the Royal Flying Doctor Service.
The male and female passengers, also from Kalbarri, were taken to a Perth hospital by ambulance.
It is believed the accident happened when the utility struck a road train it was overtaking.
Police are investigating the accident, and anyone with information is asked to call Crime Stoppers on 1800 333 000.