Bristol Police Officers responded to a report of a robbery around 9:30pm at the Subway Restaurant, 815 Pine Street.
An investigation found that the lone male suspect displayed a handgun to two of the employees and demanded the money from the cash register.
The male exited the restaurant with an undetermined amount of cash.
The suspect was described as a white male approximately 50 years of age.
Neither employee was injured in the robbery.
The incident remains under investigation by both the Bristol Police Patrol and Criminal Investigation Divisions.
Anyone with information is requested to contact the Bristol Police at 860-584-3011.