North Korea sent thousands of troops to help Russia fight off a Ukrainian counter-offensive in the Kursk region in 2024. It has also provided arms to help Russia's invasion since 2022.
The strikes followed a major Russian attack on Friday near Kyiv that killed at least 10 people and wounded around 100 others, part of a relentless cycle of tit-for-tat attacks.
Ukrainian officials say they see no signs of a Russian troop buildup in Belarus, they are determined to strengthen their border against any possible threat.
