The Aseman Airlines plane EP 3704 with 66 people on board en route from Tehran to the city of Yasuj has crashed in the city of Semirom in the province of Isfahan. The plane which was French-Italian manufactured twin-engine turboprop ATR 72-500 crashed 22 km from destination city on Dena Mountain, Zagros Mountains.
The terrain of the crash site has hampered the rescue effort along with the bad weather conditions because of which emergency teams are reaching the crash site by road and not by a helicopter. The exact cause of the crash is yet to be determined but largely the ageing fleet of Iranian planes has been the cause of many aviation accidents. Due to the tough international sanctions to curb its nuclear programme the country has only managed to obtain spare parts in recent past. It was only in 2015 when the sanctions were lifted that Aseman Airlines, the third largest in Iran signed a contract with Boeing in 2017 for purchasing 30 medium-range 737s.