After several armed robberies in Green Bay and Manitowoc, the trend continues to move south, as the Sheboygan Police are now also investigating an armed robbery. On Thursday afternoon, a man walked into the Citgo gas station on North 14th Street brandishing a gun. The man demanded money from the cashier. A 37 year old suspect was arrested, but the investigation remains ongoing. If you have any information on the incident, you are encouraged to contact the Sheboygan Police Department.