South Korea’s spy agency said Friday a wounded North Korean soldier who was captured while fighting for Russia against Ukrainian forces has since died from his injuries, the Yonhap news agency reported.

Ukrainian forces have captured a North Korean soldier amid ongoing battles in the Russia-Ukraine war. South Korea’s National Intelligence Service (NIS) confirmed the incident on Friday, marking the first time a North Korean soldier has been seized during the conflict.

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.