Danbury Police are investigating a bank robbery and a reward is being offered. Shortly before 11am yesterday officers responded to People's United Bank on Lake Ave Extension for a reported robbery. The bank is located inside of the Stop & Shop. A lone white male described as approximately 5'6" with a thin built, wearing a dark grey baseball hat, grey sweatshirt and grey pants approached the teller. He indicated that he had a weapon and demanded money. The man left the store with an undisclosed amount of money in a blue Hyundai. Anyone with information is asked to contact Detective Tom Collins 203-797-4667 or the anonymous TIPS Line 203-790-8477. Danbury Police believe this individual is responsible for several other bank robberies recently. The Connecticut Bankers Reward Association is offering a $3,500 reward for information leading to the arrest of the individual.