A Russian airliner crashed just moments after taking off, killing all 71 people onboard. It crashed near the village of Argunovo, about 80 km (50 miles) south-east of Moscow. Debris and body parts are scattered over a large area.
The Saratov Airlines flight disappeared from radar just minutes after departure for the city of Orsk, some 1,500 kilometers (1,000 miles) to the southeast.
Officials say they are considering weather conditions, human error and technical failure as possible causes.
The plane did not make an emergency call as the authorities were able to recover a flight recorder.
The plane took off at 14:27 (11:27 GMT) on Sunday. Contact was lost minutes later.
Flight-tracking site Flightradar24 said it then descended at the rate of 1,000m (3,300ft) per minute.
Eyewitnesses told Russian media that the jet was on fire as it plummeted.
A criminal inquiry has been launched for "violation of the rules for the operation of air transport, which resulted in the death of two or more people".
The plane was being flown by an experienced pilot with 5,000 hours of flight time, the airline told Ria-Novosti news agency.