A 23-year-old woman from Craigie and the man she was walking with have been killed after they were hit by a truck in the Wheatbelt region.
The crash occurred about 12:30am this morning, involving a Mack truck that was travelling east along Brookton Highway near Woods Loop in Jelcobine.
The truck took a left hand bend and hit the pedestrians who were walking along the carriageway.
The Craigie woman and a man in his 20s died at the scene.
The driver of the truck was not injured and is assisting police with their inquiries.
Anyone who saw the crash or has information is asked to contact Crime Stoppers on 1800 333 000 or make a report online at crimestopperswa.com.au.