Westgate Highway Patrol officers are investigating a crash in Cocoroc this morning.
Emergency services were called to reports a car had crashed into a truck stopped on the side of the Princes Freeway about 10am.
The male driver of the car, who is yet to be formally identified, died at the scene.
The driver of the truck was not injured.
The investigation into the circumstances of the crash is ongoing.
Anyone who witnessed the incident, has footage or any information is urged to contact Crime Stoppers on 1800 333 000 or submit an online confidential report at www.crimestoppersvic.com.au.
For the current provisional Lives Lost tally please see – https://www.police.vic.gov.au/road-safety
/Public Release. View in full here.