Every report in this developing story, from the first to the latest.
Russia has integrated an additional 8,500 North Korean military personnel, including a specialized drone unit, into its rear-echelon operations in the Kursk region.
Russia has initiated an additional military mobilization that includes the deployment of 18,000 North Korean troops.
Seoul has withdrawn its top envoy from Kyiv after Ukrainian officials publicly announced the capture of North Korean soldiers fighting for Russia.