Police are appealing for public assistance following an armed robbery in Muswellbrook on the weekend.

Just after 6.30pm on Saturday 28 September 2013, a man armed with a knife entered a bottle shop on Bridge Street, demanding cash from the employee.

He fled the scene on foot and was last seen running towards Brook Street, with an amount of cash.

Police were called and a crime scene was established.

Detectives attached to the Hunter Valley Local Area Command have released CCTV images of a man who they believe may be able to assist with their inquiries.

The man depicted in the images, is described as being of Caucasian appearance and about 165cm tall. He was wearing a black beanie, black framed sunglasses, a black jumper and pants, with white and black sneakers.