Thanks to evidence from Ukraine’s SBU security service, four traitors who joined the Russian invasion forces and fought against Ukrainian forces on the eastern front have received hefty prison terms, the press service of the SBU reported on Telegram on Dec. 21.
Explosions were heard in Russia's Rostov-on-Don, and local authorities report that Russian air defence allegedly shot down several drones, but local Telegram channels publish videos of explosions and flashes.