A North Korean soldier fighting for Russia has died while in Ukrainian captivity, South Korean intelligence says. The soldier is believed to be one of thousands of North Koreans helping Russia fight its nearly three-year war in Ukraine.

South Korea's military has said that North Korea is preparing to continue aiding Russia in its war with Ukraine, despite casualties.

"Through various sources of information and intelligence, we assess that North Korean troops who have recently engaged in combat with Ukrainian forces have suffered around 1,100 c