Iran's army has announced a cargo plane that crashed in Iran's Alborz province, west of Tehran on Monday was a military plane and that 15 out of the 16 people on board had been killed, the semi-official Fars news agency reported.
"A Boeing cargo 707 place carrying meat from Bishkek in Kyrgyzstan had an emergency landing at Fath airport today ... the flight engineer has been dispatched to the hospital," the army said in a statement carried by Fars.
Earlier Iranian state media said 10 people were on board of the crashed plane.
A spokesman for Iran's aviation organization, Reza Jafarzadeh, told IRIB that the plane was a cargo Boeing 707 that "overshot the runway during its landing."
Iranian state TV reported that the aircraft belonged to Kyrgyzstan, but a spokeswoman for Kyrgyzstan's Manas airport said the plane belonged to Iran's Payam Air.
The spokeswoman also said that the Boeing crashed in Iran after departing Manas airport near the Kyrgyz capital, Bishkek.
Fath airport is located near the city of Karaj, east of Tehran.
Iranian state television showed pictures of a plume of smoke rising from the crash site.