Kiev: Russia has lost up to a battalion of North Korean soldiers over the past two days in its western Kursk border region in the ongoing war against Ukraine, Ukrainian President Volodymyr Zelenskyy has said.According to Yonhap News Agency, Zelenskyy made the claim citing the report he received from his military, stating that the Russian army "lost up to a battalion of infantry North Korean soldiers and Russian paratroopers today and yesterday," Ukrainian media RBC reported Saturday (local time).Zelenskyy's latest remark followed South Korea's spy agency confirmation of Ukraine's capture of an injured North Korean soldier who later died, marking the first reported instance of its kind.Some 11,000 North Korean troops have been sent to Russia so far, with signs of preparations for additional deployment of troops and military equipment, as noted by South Korean officials. Zelenskyy previously mentioned that North Korea has suffered more than 3,000 casualties in the Kursk region.