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

North Korea allegedly provided more troops to Russia for support in their war in Ukraine, according to South Korea’s spy agency. South Korea’s National Intelligence Service announced it detected new troop movements from North Korea but did not specify how many troops have been deployed to Russia recently.

The fresh deployment comes after North Korea suffered heavy casualties on the front lines in Russia’s war against Ukraine, the South’s spy agency says.

The reports of a new deployment come after Pyongyang was said to be suffering heavy losses in the Kursk region.

Ukrainian troops holding positions in Kursk say the North Koreans have reappeared on the battlefield and become even more formidable foes.

Russia is expected to receive over 100 ballistic missiles from Pyongyang, the head of Ukraine's Main Intelligence Directorate, said Sunday.

According to Kyrylo Budanov, the head of Ukrainian military intelligence, North Korea supplies Russia with up to 50% of the ammunition used in the war against Ukraine, reports the United24 Media portal.