The Alexandria Police Department responded to a hold up alarm late Thursday afternoon at the Affinity Plus Federal Credit Union. A robbery had just occurred inside the credit union. The unknown suspect was given an undisclosed amount of money. He is described as a male between the ages of 25 and 45 with a dark complexion. The case is under investigation. Anyone with information or thinks they may have seen something is asked to contact the Alexandria Police Department at 320-763-6631.