NEW INFO: 6 dead after small plane crashes into Maryland house, officials say

(CNN) -- A small plane crashed into a house in suburban Washington, D.C., Monday morning, killing at least six people, according to emergency officials at the scene.

Three victims were on board the aircraft when it hit the home in Gaithersburg, Maryland, according to Montgomery County fire spokesman Pete Pringer, who talked with CNN affiliate WUSA.

Three additional victims were inside the home at the time of the crash.

Two neighboring houses were damaged in the explosion.

The Embraer EMB-500/Phenom 100 twin-engine aircraft was on approach to Montgomery County Airport when the accident happened around 11 a.m., according to the Federal Aviation Administration.

The FAA and officials with the National Transportation Safety Board are on the scene.

CNN's Deanna Hackney, Leslie Holland and Rene Marsh contributed to this story.