Brimbank Highway Patrol officers are appealing for public assistance as they investigate the circumstances surrounding a collision in Deanside this morning.
Emergency services were called to the Western Freeway, inbound near Hopkins Road, following reports a truck and ute had collided about 4.15am.
The truck rolled as a result of the collision, with a section of the freeway remaining closed throughout today.
The driver of the truck, a 63-year-old Beaufort man, was transported to hospital with serious but non-life-threatening injuries.
The driver of the ute, a 29-year-old Truganina man, was transported to hospital with minor injuries.
The exact circumstances surrounding the collision are yet to be established and the investigation is ongoing.
Anyone who witnessed the collision, has vision or any information is urged to contact Crime Stoppers on 1800 333 000 or www.crimestoppersvic.com.au