Fawkner Highway Patrol officers are appealing for public assistance following a crash in Sunbury yesterday.
Investigators believe a man driving a Toyota Hilux utility was travelling through roadworks along Lancefield Road when he crashed into the back of a stationary truck, about 12.30pm on 19 October.
It is believed the impact of the collision forced the truck to roll, and subsequently and hit another vehicle.
The driver of the utility, a 27-year-old Essendon man, sustained life-threatening injuries and was airlifted to hospital.
No one else was injured, and the exact cause of the collision is yet to be determined.
Investigators wish to speak to anyone who witnessed the collision, or who may have footage of the Toyota Hilux driving along Lancefield Road before the collision occurred.
Anyone with information, dashcam footage or information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential crime report at www.crimestoppersvic.com.au
