The man was transported to the hospital with non life-threatening injuries after he was stabbed following an argument near the Lake Anne Market at 1645 Washington Plaza about 12:23 a.m.
The call to 911 was made by employees of the market, who told police they saw the suspect and victim arguing in the parking lot, said Fairfax County Fire Rescue Capt. Randy Bittinger.
The stabbing suspect, a woman, was arrested at the scene, Bittinger said.
Reston Now will add more details to this post when they are available.