A woman in her 20s was airlifted to hospital after crashing an allegedly stolen car into a truck.
The head-on collision occurred at the intersection of Geelong-Ballan Road and Slate Quarry Road in Durdidwarrah, east of Meredith, about 5pm on Tuesday.
The woman was taken to the Alfred Hospital in a critical condition with head injuries.
The driver and passenger in the truck were unharmed.
Police investigations are ongoing.
Anyone with information, or dashcam footage, is urged to phone Crime Stoppers on 1800 333 000.
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