Police seeking unknown man over Sydney war memorial vandalism

Sydney police are seeking an unknown man as they continue to investigate how a sacred war memorial in the city was vandalised.

Officers today released CCTV images of the man they wish to speak with over damage to the Anzac War Memorial in Hyde Park last month.

The unknown man entered the memorial about 2.40pm on Thursday, September 25 and poured an oil-like liquid onto stones and a metal memorial plaque before leaving.

READ MORE: The truth behind Australia's birth rate 'crisis'

Police were later called and officers set up a crime scene.

Despite efforts from caretakers to remove the liquid, the memorial remains damaged.

The man is described as being of Caucasian appearance, between the ages of 40 and 50, of a medium build, with dark hair, a beard and was last seen wearing black shorts and a black t-shirt.

Anyone with information about this incident is urged to contact Sydney City Police or Crime Stoppers on 1800 333 000.

DOWNLOAD THE 9NEWS APP: Stay across all the latest in breaking news, sport, politics and the weather via our news app and get notifications sent straight to your smartphone. Available on the Apple App Store and Google Play.