U.S. federal aviation officials say two small airplanes collided above Alaska Saturday afternoon. Authorities say one of the planes crashed to the ground and burned, killing at least two people.

Officials say the second plane maintained flight and returned to the international airport in Anchorage, where it landed safely.

Authorities say the downed airplane was a Cessna 180. They say the remains of two people and possibly a third were seen in the wreckage.

Alaska state troopers say the pilot of the Cessna 206 that returned to Anchorage was not injured and was the only person on board the aircraft.