TU-154 plane RV 7908 of Caspian Airlines heading from Tehran to Yerevan attempted an emergency landing, Iranian Press TV reported referring to Fars News Agency.

“The aircraft all of a sudden fell out of the sky and exploded on impact, where you see the crater,” a witness told Press TV.

Deputy Governor of Qazvin province Sirous Saberi says the military forces are searching for the plane's black box to determine the cause of the crash.

The Tupolev plane went down near Jannat-abad village near Qazvin at 11:33 am local time on Wednesday after it took off from the Iranian capital Tehran to fly to Yerevan. All of 153 passengers and the crew of 15 on board are confirmed dead.