Police have released CCTV still images of two men who may be able to assist with investigations into an armed robbery of a service station at Marsden on April 1.

Around 9.30pm two men entered the Browns Plains Road business, one armed with a knife, the other a tomahawk, and demanded money from the female attendant.

When they were refused money they left, taking cans of drink from a display near the door.

The attendant was not physically harmed.

Both men are described as between 17 and 18 years old, of Pacific Islander appearance, 175cm tall and of slim build.

Police are appealing for anyone who may know the men or has any information about the incident to contact Crime Stoppers.