Montgomery County, Maryland — At least six people were killed on Monday morning when a private jet crashed into a residence in a Gaithersburg, Maryland neighborhood. The fatal crash happened at around 10:45 a.m. on the 19700 block of Drop Forge Lane near Snouffer School Road.

The Federal Aviation Administration (FAA) has stated that the Embraer EMB-500/Phenom 100 twin-engine plane was scheduled to land on Runway 14 at Montgomery County Airpark, which is roughly a mile from the crash site. The jet was registered to Sage Aviation, a Chapel Hill, North Carolina-based company.

A witness told the media that the pilot was flying extremely low, possibly struggling to keep the jet in the air. The witness, who was driving through the neighborhood at the time, saw the plane make a hard right, then turned back to the left before entering into a barrel roll and plummeting toward the ground. It was then that the plane crashed into a home, sparking a fire that caused damage to three homes on the block.

At least three people on the plane are confirmed dead. Michael J. Rosenberg, the CEO of North Carolina-based Health Decisions, was identified as one of the three victims on the plane. Rosenberg was reportedly an experienced pilot. Three people in the house were also killed. Their identities have not yet been released, though an ABC 7 report indicates that the deceased on the ground are a mother her two children.

Since 1995, Gaithersburg has seen 14 plane crashes, two of which resulted in fatalities. The two most recent crashes near the airpark include a forced landing and a landing overrun.

At this time, officials are uncertain what circumstances led to Monday’s crash. The National Transportation Safety Board (NTSB) has dispatched a team of investigators to Montgomery County.