Wagner boss hints at Russia's responsibility for downed military plane.

The head of Russia's Wagner private army, Yevgeny Prigozhin, suggested that four Russian military aircraft that reportedly crashed in a region that borders Ukraine may have been shot down by Russia's own forces. The reported crashes raise concerns about Ukraine's capability to hit Russia and about Russia's military competence. A spokesman for Ukraine's air force denied Sunday that Ukraine was involved in downing the aircraft.