MOSCOW, June 15 (Reuters) - A Russian Tu-22M3 strategic bomber plane crashed on Monday in Siberia's Irkutsk region during a training flight, the Russian Defence Ministry said, and the aircraft's crew had managed to safely eject. The Tu-22, which can carry hypersonic "Kinzhal" missiles and is code named "Backfire" by NATO, is a Soviet-era supersonic bomber that Russia has since used for combat missions in Syria and Ukraine.