A CrimeStoppers reward is being offered for information leading to an arrest in connection with the robbery.
Police said two males entered the business around 9:30 p.m., pointed a gun at employees and demanded money.
Both suspects were wearing ski masks. One suspect was described as six feet to six feet three inches tall. The second suspect was a few inches shorter.
Anyone with information is asked to call Investigator Sterling at the Durham Police Department at 919-560-4415, ext. 29303, or CrimeStoppers at 919-683-1200. Callers to CrimeStoppers never have to identify themselves.