Major Collision Investigation Unit detectives are investigating after a car struck a tree in Hastings last night.
The car was travelling along Hendersons Road when it hit a tree near Tuerong Place shortly before 8pm.
The male passenger sustained life-threatening injuries and was airlifted to hospital.
The female driver was taken to a local hospital with minor injuries.
Detectives are investigating to determine the cause of the crash.
Any witnesses or anyone with dash cam footage is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report at www.crimestoppersvic.com.au