Police are seeking information about an armed man who robbed a convenience store in Rockbank on March 9.
The man entered the Western Highway store about 5.40am.
He took a drink from a fridge and then produced a firearm, demanding cash from the employee.
The man fled with a small amount of money. No one was injured.
The man was described as Caucasian, early to mid 20s, 180 centimetres with a medium build. He was wearing a white cap, black hooded top with a white motif across the front and black pants.