According to Fairfax County Police, the incident happened in the 5000 block of Caryn Court.
Police say that a man approached a group of four kids playing in that area, displayed a knife, and then tried to grab one of the kids by the hand.
The child was able to break free of the man's grip and all four children ran away from the scene.
Police say officers were able to find the suspect nearby the scene and took him into custody.
The suspect was identified by police as Kevin Moran-Perez, 22, from Centreville, Virginia. Police say he faces several charges including assault and is being held in custody without bond.
Credit: Fairfax County Police Department
Investigators say that none of the children were injured during the incident.
The investigation into the incident is ongoing. Anyone with information is asked to call 703-256-8035.