PORTLAND, Maine (AP) — Six people died when a business jet crashed during takeoff as a snowstorm moved in and visibility diminished in Maine Sunday night.

The Bombardier Challenger 600 flipped over and burned on takeoff at Bangor International Airport around 7:45 p.m. Sunday night as the nation’s massive winter storm was beginning to reach the area.

An audio recording of air traffic controllers posted by www.LiveATC.net includes someone saying “Aircraft upside down. We have a passenger aircraft upside down,” about 45 seconds after a plane was cleared for takeoff. First responders arrived less than a minute later, airport director Jose Saavedra said.

Experts say the weather and questions about whether ice accumulating on the wings kept the plane from getting airborne — as has happened at least twice before on that plane model — will likely be an initial focus by the National Transportation Safety Board. However, the agency will