The Saratov Airlines jet vanished minutes after take-off and crashed near the village of Argunovo, about 80km (50 miles) south-east of Moscow.
The cause of crash is unclear. Investigators and emergency crews are working at the snow-covered site.
The Antonov An-148 was en route to the city of Orsk in the Ural mountains.
Pieces of wreckage and bodies were found spread over a large area. One of the flight recorders has been recovered, officials say. – CNN
Picture of the plane before it took off
Picture of wreckage