Major Crash Investigators are seeking information regarding a fatal crash in Burlong on Sunday.
Around 11am a collision occur ed involving a car, a car towing a caravan and a truck on Great Eastern Highway, 5km west of Northam.
The driver of the car, a woman, received serious injuries and was conveyed to hospital by St John Ambulance but died a short time later.
The driver of the car towing the caravan received injuries and was conveyed to hospital for treatment.
The driver of the truck was not injured.
Investigators are calling out for witnesses to the crash to call Crime Stoppers on 1800 333 000.
More information to come.