Three people were on board the jet when it crashed into the home in Gaithersburg, a Washington, DC suburb, county Fire and Rescue Chief Steve Lohr said during a news conference.
They were all killed and three residents who live at the home are unaccounted for, he said. He released no other details about the home's residents.
The two-story, wood-frame home was gutted by the impact of the crash and ensuing blaze. The first floor was nearly completely blown out and smoke drifted from a gaping hole in what was left of the collapsing roof. Two adjacent homes also had significant damage, with one of them clearly having caught fire, as well.
"This guy, when I saw him, for a fast jet with the wheels down, I said, 'I think he's coming in too low,'" Pedreira told The Associated Press. "Then he was 90 degrees - sideways - and then he went belly-up into the house and it was a ball of fire. It was terrible.
"I tell you, I got goosebumps when I saw it. I said, 'My God, those are people in that plane," Pedreira said. "I just hope nobody was in that home."
"When I opened my window, I could see smoke over the trees and I heard a small explosion, like a pop," he said. "I could see the smoke rising. It's scary."
An FAA spokesman said preliminary information showed the Embraer EMB-500/Phenom 100 twin-engine jet was on approach at the nearby Montgomery County Airpark. The National Transportation Safety Board was launching a team to investigate.
