Man arrested after alleged fatal western Sydney assault

A man has been arrested following an alleged fatal assault at a home in Sydney's west overnight.

About 11pm police were called to a home on Driftway Drive in Pemulwuy following reports that a man had been assaulted.

Police found a 62-year-old man at the home suffering serious injuries.

He was treated at the scene before being taken to Westmead Hospital, where he later died.

A 36-year-old man was arrested at the home. He was taken to Merrylands Police Station where he is assisting police with inquiries.

A report will be prepared for the Coroner.