Wagner boss Yevgeny Prigozhin was on the passenger list of a plane which crashed in Russia, killing all 10 on board, BBC reports He was believed to be on board the plane. Earlier, a Wagner-linked Telegram channel Grey Zone reported that the jet was shot down by air defences in Tver region, north of Moscow. Prigozhin led a failed mutiny against the Russian armed forces in June. This is a developing story