Detectives from the Regional Investigations Unit are calling for the public’s assistance with their investigation into an armed robbery at a Rivervale fast food restaurant last month. The incident happened about 9.30pm on Thursday 2 May 2013 when two men, one armed with a knife entered Red Rooster on Great Eastern Highway. The first offender brandished the weapon towards several young staff members, demanding cash while the second offender remained at the doorway. The offender stole a quantity of money before the pair fled the scene. It is believed the men were seen earlier during the evening with another two men in a late 1990’s model silver Ford Fairlane sedan. The first man is described as approximately 30 years of age, tanned complexion, about 185cm tall and of solid build. He wore a black/white chequered flannel shirt, black/white baseball cap and black pants. The second man is described as approximately 30 years of age, tanned complexion, about 175cm tall and of medium build. He wore a blue hooded jacket, black baseball cap and cream knee-length pants.