Police investigating after a Booval convenience store was robbed last night have released images of a man who may be able to assist with their inquiries.

Around 6.40pm a man entered the Brisbane Road business and took a drink from a fridge before approaching the male attendant at the counter and demanded money. When the attendant did not immediately comply the man produced a knife.

After obtaining cash the man has fled the store and was last seen heading down an alleyway towards a carpark.

The male attendant was not physically harmed.

The man is described as Caucasian, 173cm tall and of thin build. He was wearing a black hooded top, black shorts and was carrying a backpack.