The ministry said two crewmembers were killed while two others were hospitalized. One of them later died at a hospital, according to local medical officials. The bomber wasn't carrying weapons, according to the ministry's statement that was carried by Russian news agencies.
Military investigators have started the crash probe, and the Tupolev company that manufactured the bomber said its experts will join the investigation. Aviation expert Vadim Lukashevich believed that the crash was likely caused by a vertical wind gust that suddenly hit the plane before touchdown, according to the RIA Novosti news agency.
The Tu-22M3 is a twin-engine supersonic heavy bomber built in the 1980s. Significant numbers have remained in service with the Russian air force, which has used the aircraft during its campaign in Syria.