The Loudoun County Sheriff's Office is investigating a home invasion style robbery.
Around 3:40 p.m. Monday, four unknown males went into a townhouse on Sawyer Square in Ashburn and confronted a teenager who was inside, authorities said.
One of the suspects pulled out a knife and demanded money.
While the robbery was happening, another resident returned home and was confronted by the suspects as well.
The guys got away with cash, a video game system and a cell phone.
Authorities released a composite sketch of one of the suspects and a picture of the type of gold SUV seen leaving the scene.
Neither of the victims suffered any injuries.