Ukrainian troops reportedly hit the command post of Russia's 810th Separate Marine Brigade in the town of Lgov in Kursk Oblast overnight on Dec. 25.

On Dec. 20, a Ukrainian strike on enemy forces near Novoivanovka in Russia's Kursk Oblast inflicted heavy losses on North Korean troops, according to Ukraine's military intelligence (HUR). The attack resulted in numerous casualties,

Russia has arrested four people on suspicion of plotting to assassinate senior defence officials and their families on Ukraine’s orders, the Kremlin’s Federal Security Service (FSB) said.