Police are investigating the armed robbery of a Cumberland Farms store at 819 River Road in Shelton.
Authorities said a man in a ski mask entered the store around 2 a.m. Sunday, brandishing a handgun, and demanded cash.
An employee handed over an unknown amount of money and the robber fled. Police said no one was injured during the incident.
Police said the suspect was wearing a black hooded sweatshirt and a black ski mask.
Anyone with information about the crime is asked to call the Shelton Police Detective Bureau at 203-924-1544.