On Feb. 19 at 9:59 p.m., a man was inside the stairwell of a residential building in the 1000 block of South Frederick Street when four men entered, Arlington police said.
One of the individuals in the group brandished a firearm, struck the victim with it and stole his personal property before the victims fled on food.
The victim sustained injuries described as non-life-threatening and was treated on scene by medics.
The suspect and other subjects are described as males of unknown race, wearing all-black clothing.