Major Collision Investigation Unit detectives are investigating a fatal collision in Hernes Oak this evening.
Emergency services were called to a four-car collision on Princes Freeway about 5.20pm.
The male passenger of one of the vehicles, who is yet to be formally identified, was pronounced deceased at the scene.
The female driver was taken to hospital with serious injuries.
Four occupants of another car, a woman and three children, were taken to hospital for assessment.
A male driver, who was the sole occupant of another vehicle, was also taken to hospital for assessment.
A female passenger of a fourth vehicle was airlifted to hospital with critical injuries.
The male driver, a 31-year-old Moe man, was arrested and is assisting police with their enquiries.
Police were told two other male passengers fled the scene on foot.
Investigators are working to establish the exact circumstances of the collision.
Anyone who witnessed the incident, has dashcam/CCTV footage or information is urged to contact Crime Stoppers on 1800 333 000 or make a report online at www.crimestoppersvic.com.au
