Police have released a CCTV image today following an armed robbery in Sydney’s west.

About 8.20pm on Sunday 17 September 2017, police have been told a 27-year-old woman was followed by a man from Lidcombe Railway Station.

The man, armed with a knife, threatened the woman on nearby John Street and stole her handbag.

She was not injured during the incident and her handbag was later found in Maud Street, Lidcombe, with cash, a wallet and credit card missing.

Police attached to the Flemington Local Area Command attended the scene.

Investigators have released a CCTV image of a man who may be able to assist with inquiries.

The man is described as being of African appearance, aged in his 20s, about 175cm tall and with a thin build. He is shown in the CCTV image wearing a white hooded jumper, knee-length shorts and yellow or orange sneakers.

Anyone with information is urged to come forward.