BOZEMAN, Mont. (AP) — Officials in Montana say one person is dead after a small airplane crashed.

A passenger called and reported the crash.

The Federal Aviation Administration says a twin-engine airplane with three passengers was traveling from Helena to Jackson, Wyoming, when it went down Thursday morning in mountainous terrain.

Madison County Sheriff Phil Fortner said the plane was located Thursday afternoon, and searchers were working to get to the scene to make an assessment.

It was not immediately clear where the plane was found. Crews had been searching in the Madison Range between Ennis Lake and Big Sky.