A midair collision involving two small planes in southern Arizona killed two people.

Axar.az reports that citing AP, Federal air-safety investigators said each plane had two people aboard when they collided at Marana Regional Airport on the outskirts of Tucson.

A Cessna 172 landed uneventfully and a Lancair 360 MK II hit the ground near a runway and caught fire, according to the National Transportation Safety Board, which is leading the investigation and cited preliminary information before its investigators had arrived.

The Marana Police Department confirmed that the two people killed were aboard one aircraft and said responders did not have a chance to provide medical treatment. Police did not identify which plane they were in, but the operator of the Cessna —AeroGuard, a commercial flight training school — said its two pilots were not injured.