A Turkish plane with 57 people on board has crashed in southwest Turkey, killing all on board.
The MacDonnell Douglas 82 aircraft, carrying 50 passengers and seven crew, disappeared from radar as it was descending to land at Isparta airport.
The crash occurred outside Kesiburlu, a town some 12km from Isparta's Suleyman Demirel airport.
The Atlasjet flight from Istanbul to Isparta came down in a mountainous area near the airport.
As the plane was beginning its descent, it sought permission to land and after receiving a positive reply from the tower, contact was lost.
An Atlasjet spokesperson said the cause of the crash was still unclear as weather conditions were normal and the aircraft had no known technical problems.
Local police and paramilitary troops have gone to the scene, while two helicopters were sent from the capital, Ankara, to help in the operation.
Rescue workers reached the mountainous crash site after military helicopters spotted the wreckage of the airliner. Some 300 soldiers are now guarding the crash site.
The aircraft was leased by Turkish-based World Focus Airlines to AtlasJet, which operates 15 planes.