Police are appealing for information after a man sustained head injuries following an assault at Orange on the weekend.
About 9.30pm on Saturday a 36-year-old man was at a hotel on Byng Street when he and another man were involved in a verbal argument.
Police have been told the 36-year-old was asked to leave the hotel.
As the man stood outside a door of the hotel, an altercation allegedly occurred between him and another man, resulting in the 36-year-old man falling backwards down a flight of stairs.
The man hit his head on the bitumen, sustaining an injury to the back of his head.
On Sunday the man attended Orange Hospital, where it was established he had sustained a fracture at the base of his skull and internal bleeding.
He was airlifted to Westmead Hospital in a stable condition.
His injuries are not believed to be life-threatening.
Police from Canobolas Local Area Command attended the hotel and established a crime scene.
Detectives are now appealing for anyone with information about the incident to come forward.
Police are urging anyone with information about this incident to call Crime Stoppers on 1800 333 000 or use the Crime Stoppers online reporting page: https://www1.police.nsw.gov.au/.