Police are investigating after two men robbed a service station at Marsden last night.

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 aged 17-18 years, of Pacific Islander appearance, 175cm tall and of slim build.

The first man was wearing a black shirt, grey shorts, black baseball cap and black shoes.

The second was wearing all black with a black cap.

Both men had towels across their shoulders.