Sun Market, a convenience store on Main Street in Willimantic, was robbed Saturday night, police said.
The suspect said he had a weapon, but police say it wasn't shown to the clerk.
One clerk was in the store at the time and that person was not injured.
This was the second convenience store hold-up in three days, police said.
Police say the suspect is a caucasian male, approximately 5’11” tall, and he was wearing a dark ski mask and a black shirt.
Anyone with information regarding this robbery is being urged to contact the Willimantic Police Department at (860) 465-3135. All calls and supplied information will be kept confidential.