North Korea recently sent some 3,500 additional soldiers to Russia's Far East for field training, a South Korean lawmaker said Wednesday, with the possibility of soon being dispatched to the front lines.

The psychological warfare to urge North Korean soldiers to surrender in battle has had little effect, according to Ukrainian intelligence Reports of more North Korean troops training for deployment in the Ukraine war have raised alarm in Seoul,

South Korea's spy agency says North Korea appears to have sent more troops to Russia, after its soldiers deployed on the Russian-Ukraine fronts suffered heavy casualties.