North Korean troops have adjusted their tactics in Russia’s Kursk region, reducing the size of their assault groups and exercising greater caution in combat, according to a Ukrainian officer fighting in the area.

The change comes as North Korean servicemen have suffered heavy losses and amid Kyiv’s success in hitting a DPRK-made 170mm Koksan self-propelled gun in Donbas.

Stanislav Krasnov, a Ukrainian platoon commander of the 1st Air Assault Battalion of the 95th Air Assault Brigade, told Kyiv’s Army TV on Thursday that North Korean troops have reentered combat in Kursk, resuming assaults on the western flank.