Soldiers killed in Turkey copter crash

17 military personnel died in the helicopter crash, state media say The incident occurred in Turkey's southeastern Siirt province The helicopter is thought to have crashed into a mountainside in fog, state media say Istanbul (CNN) -- Seventeen military personnel died in a helicopter crash in Turkey, state media reported Saturday. The Sikorsky-type helicopter, which was carrying soldiers to an operation, crashed in Pervari district, in Turkey's southeastern Siirt province, official broadcaster TRT said. The helicopter is believed to have plowed into a mountain because of fog, the broadcaster said. Four of those killed were crew members, the other 13 soldiers, the semi-official Anadolu Agency cited Siirt governor Ahmet Aydin as saying. CNN's Gul Tuysuz contributed to this report.