Police are currently on scene of a fatal car crash in Yarraberb near Bridgewater.
It is believed a car travelling west along Sebastian Road veered off the road and crashed into a tree about 12.30pm.
The driver, an 18-year-old Bridgewater man, died at the scene.
His male passenger, a 14-year-old youth has been airlifted to hospital in a serious condition.
The exact cause of the crash is yet to be determined at this stage.
Anyone with information, who witnessed the crash or with dash cam footage is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential crime report at www.crimestoppersvic.com.au