Detectives are investigating a collision and shooting in Epping on Monday, September 1.
Emergency services were called to the Hume freeway exit and Cooper Street about 9.30pm after reports of a car and truck colliding.
A 23-year-old-man who was inside the car was taken to hospital with serious gunshot injuries, while an 18-year-old woman from the same vehicle was transported with life-threatening injuries caused by the crash.
The truck driver was not injured and remained at the scene. Police said they do not believe the truck driver was involved in the shooting.
Officers on scene then located a car on fire a short distance away on Cooper street and are working to determine if the car fire is linked to the shooting and collision.
A significant crime scene has been established and the investigation is ongoing.
Anyone with dashcam, CCTV or information is urged to contact Crime Stoppers on 1800 333 000 or via www.crimestoppersvic.com.au.
