Officers were dispatched to the mall shortly after 2 a.m.
Police say the men entered the back room of the business, pistol whipped an employee in the face, and stole cash and other items before fleeing.
More from an Arlington County Police Department crime report:
ARMED ROBBERY, 2018-05270026, 1100 block of S. Hayes Street. At approximately 2:21 a.m. on May 27, police were dispatched to the report of an armed robbery. Upon arrival, it was determined that the victim was in a back room of the business when two unknown male suspects entered the room. One suspect brandished a firearm, hit the victim in the face with it, and demanded cash, while second suspect, brandishing a taser, stole cash and items of value. Both suspects fled the scene on foot prior to police arrival. The victim did not require medical treatment. Suspect One is described as a black male, in his 40’s or 50’s, approximately 6’3″, with a thin build, wearing a dark hat and dark pants. Suspect Two is described as a black male, in his late 30’s or 40’s, with an athletic or stocky build, wearing a dark hoodie with the hood up, a mask and gloves. The investigation is ongoing.