Police are investigating a collision which occurred in Tarneit on Wednesday, August 13.
Police have been told a man was struck by a vehicle near Leakes and Begonia roads at about 6.30pm.
He was airlifted to hospital with life-threatening-injuries.
The alleged driver of the vehicle did not stop at the scene and was arrested at a property on St Nicholas Court.
The man was taken into custody and was interviewed on Thursday, August 14.
The exact circumstances surrounding the collision are yet to be established and the investigation is ongoing.
Anyone with information can contact Crime Stoppers on 1800 333 000 or http://www.crimestoppersvic.com.au/
