14-15 near the villages of Pliekhovo, Vorozhba, and Martynovka, North Korean losses have to be replenished by fresh soldiers from North Korea's 94th Separate Brigade, HUR claimed. Three soldiers also reportedly went missing.The Kyiv Independent could not independently verify HUR’s claims.Ukrainian and Western officials warned in the fall that over 10,000 North Korean troops had amassed in Kursk Oblast, ready to aid Russia's attempt to oust Ukrainian forces in the region. The move represents an unprecedented escalation in Russia's war against Ukraine.The first limited clashes between North Korean and Ukrainian troops in Kursk Oblast were reported in early November, with North Korean soldiers recently joining ground assault operations.North Korean troops also allegedly opened fire and killed eight Russian soldiers on Dec. 14 in a "friendly-fire" incident.Ukraine war latest: North Korean troops joining Russian assaults in Kursk, Zelensky saysKey developments on Dec.