Police are appealing for information on a fatal hit and run in Dean Park early today.
A man was found lying on the footpath on Richmond Road about 12.30am (Friday, February 21).
He was taken to Westmead Hospital but later died.
Police from Quakers Hill Local Area Command and investigators from the Crash Investigation Unit attended the scene and started inquiries.
Investigations so far have lead police to believe the man may have been hit by a vehicle.
Police believe the vehicle involved may have sustained damage to the passenger side mirror and are urging smash repairers to be on the lookout.
A report will be prepared for the information of the coroner.
Anyone with information about this incident should call Crime Stoppers on 1800 333 000 or use the Crime Stoppers online reporting page: police.nsw.gov.au/.