Police are investigating a fatal collision in Strathmerton this afternoon.
It's believed two vehicles and a truck have collided at the intersection of Murray Valley Highway and Labuan Road about 2.30pm.
Three people, who are yet to be formally identified, have died at the scene.
Three others have been taken to hospital with non-life-threatening injuries.
The driver of the truck was uninjured and stopped at the scene.
The exact cause of the collision is yet to be determined at this stage.
Major Collision Investigation Unit detectives are en route to the scene.
Anyone who witnessed the collision, has dashcam footage or information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report online at www.crimestoppersvic.com.auExternal Link.