North Korean troops deployed in Russia's Kursk region are suffering heavy losses and being left unprotected by the Russian forces they are fighting alongside, Ukrainian President Volodymyr Zelenskiy said on Friday.

The first North Korean soldier taken prisoner of war by Ukrainian forces while fighting for Russia has died of his injuries, South Korean intelligence said Friday.

Russia launched a massive attack on Ukraine’s energy grid, leaving many in the country in the dark over the holiday. Retired Col. Jack Jacobs shares his thoughts about recent developments in Ukraine and a potential twist in North Korea’s involvement.