According to police, a robbery took place at Webster Bank located at 260 Main Street.
Police say the suspect handed a note to the teller and demanded money.
Officials describe the suspect as a tall, white man in his 20’s or 30’s with a slim to medium build. He was wearing a black jacket, a New York Yankees hat, gloves, a black face mask, khaki pants and work books during the alleged crime.
Authorities say he fled the scene in a newer model white GMC 1500 single cab with tinted side and rear windows and a strip of tint at the top of the front windshield.
The vehicle was last seen heading westbound on Dodge Avenue.
Anyone with information on the crime or on the suspect is asked to contact East Haven police.