Kenosha Police are investigating an armed robbery that took place this week at a dollar store. According to police, three people walked into Dollar General, on Sheridan Road, at about 8:20 p.m. Monday, one of the men showing the cashier a black handgun and demanding cash. Police said they took an undisclosed amount of money and fled on foot, with the cash in a yellow shopping bag. Police searched the area Monday night but were unable to find the suspects. Anyone with more information should contact police.