Police have released CCTV images of a man who may be able to assist with inquiries following an armed robbery in Newcastle at the weekend.

About 12.30pm on Sunday 3 April 2016, a man entered a convenience store on Wharf Road, Newcastle.

The man threatened a 23-year-old male worker and demanded money.

A sum of cash was handed to the man and he left the store, running north towards Hunter Street.

No one was injured.

Police from Newcastle City Local Area Command were called and commenced an investigation.

As part of their inquiries, detectives have released CCTV images of a man they would like to speak to.

The depicted man is described as being of Caucasian appearance, in his early to mid 50s, about 175-180cm tall with a muscular build. He was wearing a black t-shirt, cream shorts and a panama hat.

Anyone with information is urged to contact Newcastle detectives on (02) 4929 0027 or (02) 4929 0999, or via Crime Stoppers.