Russia’s Mi-8 helicopter has been shot down with fire from the ground over Syria’s Idlib province, Russian TASS News Agency reported on Monday. 
The three Russian crewmembers and two officers are unaccounted for, the Defense Ministry has said. 
"A Russian transport helicopter Mi-8 was shot down with fire from the ground on the way to the Hmeymim air base after delivering humanitarian aid to the city of Aleppo. There were three crewmembers and two officers on board." the Defense Ministry said. 
Kremlin spokesman Dmitry Peskov confirmed in a statement the killing of the entire crew.

Source: QNA