The Dodge County Sheriff’s Office is investigating an armed robbery at a town of Beaver Dam gas station. Sheriff Dale Schmidt says the BP gas station on Madison Street was robbed at gunpoint shortly after 8am Tuesday. The suspect displayed a weapon, stole an undisclosed amount of cash and fled on foot. He was last seen traveling westbound on Lake Crest Drive in the city of Beaver Dam. A $500 reward is being offered by the owners for information that leads to the arrest and conviction of the perpetrator. The subject was about 6 foot tall and about 180-200 pounds. He was wearing dark clothing and a facemask. Anyone with information should contact the Dodge County Sheriff’s Office at 920- 386-3726.