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.

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.

North Korea appears to have sent more troops to Russia despite its soldiers suffering heavy casualties fighting on the front lines in Ukraine, South Korea’s main spy agency said Thursday. Seoul’s National Intelligence Service (NIS) said it was trying to figure out how many additional troops North Korea deployed to Russia,