Police are making ground on finding a driver involved in an alleged hit-run crash that killed a motorcyclist in Melbourne's south-east overnight. The rider was allegedly hit by a silver Holden Commodore on Thompsons Road near the intersection of Lansell Drive about 1.40am in Cranbourne North. CCTV obtained by 9News shows a Holden Commodore making an illegal U-turn before a motorcyclist comes from behind and crashes into the car. LIVE UPDATES: A motorcyclist has died in a hit-run crash in Melbourne.(Nine) The driver then appears to get out of the car and looks around, grabbing a broken bumper bar and tossing it over the rail guard.