Cash was stolen from a coffee shop on the Ormeau Road in south Belfast by a man armed with a hammer.
The armed robbery happened on Saturday (9 January) just before 8am.
The man entered the shop and threatened a female staff member.
A sum of money was handed over and the man then made off from the scene on foot.
He is described as being aged in his 20s, clean shaven and was wearing a dark cap, grey tracksuit bottoms, a navy sweatshirt, white Nike AirMax trainers and black gloves.
Whilst the staff member was not injured as a result of the incident, she was, however, left badly shaken.
Enquiries are currently ongoing and detectives would ask anyone who noticed a man matching this description in the Ormeau Road area or anyone with dashcam footage, recorded near the Haypark Avenue junction at the time of the robbery, to contact them at Musgrave on 101 quoting reference number 349 09/01/21.
A report can also be made online using the non-emergency reporting form via http://www.psni.police.uk/