Police are appealing for public assistance following an armed robbery in Sydney’s north-west over the Anzac Day long weekend.

About 6.30pm on Saturday 23 April 2022, a male wearing black clothing entered a service station on North Rocks Road, North Rocks and threatened an attendant with a knife.

The male demanded money, before fleeing the scene on foot with cash. He was last seen walking eastbound on North Rocks Road.

As inquiries continue, police have released an image of a man who may be able to assist with their investigation.

He is described as being of Caucasian appearance, about 180cm to 190cm tall, and of thin build.

The man is depicted in the images wearing a black t-shirt, black track suit pants, black shoes and a black stocking over his head.

Anyone with information is urged to contact Castle Hill police or Crime Stoppers on 1800 333 000.

Anyone with information about this incident is urged to contact Crime Stoppers: 1800 333 000 or https://nsw.crimestoppers.com.au. Information is treated in strict confidence. The public is reminded not to report information via NSW Police social media pages.