Major Collision Investigation Unit detectives are appealing for witness and dashcam footage following a collision which left a cyclist in critical condition in Beaconsfield last night.
Police have been told a silver Ford Falcon and cyclist collided on Old Princes Highway about 9.20pm.
The cyclist, a 31-year-old Beaconsfield man, was airlifted to hospital with life threatening injuries.
The 19-year-old female driver from Pakenham stopped at the scene and is currently in custody assisting police with their enquiries.
The investigation remains ongoing.
Police are appealing to anyone who may have witnessed the collision or to anyone with dashcam footage to contact Crime Stoppers on 1800 333 000 or log onto .
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