South Korea's spy agency says an estimated 4,700 North Korean soldiers have been killed or wounded while fighting alongside Russia against Ukrainian forces

SEOUL, April 30 (Yonhap) -- Some 600 North Korean soldiers are believed to have been killed fighting for Russia against Ukraine, South Korea's spy agency told lawmakers Wednesday, adding that more than 4,000 North Korean soldiers have been also wounded.

Around 600 North Korean soldiers have been killed while fighting alongside Russian forces, South Korean lawmaker Lee Seong-kweun said on April 30, citing briefings from the country's National Intelligence Service,