PERTH Detectives are seeking assistance with their investigation into a robbery at a Hay Street East Perth liquor store on Saturday, August 19. About 8.40pm, two men entered the store and took a carton of beer each before walking out of the store without attempting to pay. A staff member followed the men out of the store, asking them to return the alcohol. One of the men put his alcohol on the ground and walked away, while the second man became aggressive and punched the employee, then threw the carton of beer at the employee. Both men left the area and walked down Bennet Street. Police released CCTV images of two men who they believe may be able to assist them with their inquiries. The first man is described as dark skinned, approximately 180cm tall with a solid build and was last seen wearing blue jeans, a black jumper, dark coloured shoes and a black hat. The second man is described as olive skinned, approximately 183cm tall with a medium build and was last seen wearing brown trousers, a black jumper, blue shoes and a white hat. Quote reference number 8623.