The explosion that downed a plane carrying leader Yevgeny Prigozhin and nine others was likely caused by a bomb, two U.S. officials told ABC News. WATCH FULL EPISODES OF WORLD NEWS TONIGHT: abc.com/shows/world-news-tonight WATCH WORLD NEWS TONIGHT ON HULU: bit.ly/3iQLwPp #Bomb #WagnerLeader #PlaneCrash #YevgenyPrigozhin #WorldNewsTonight