President Volodymyr Zelenskiy said on Sunday he was seeking a strong reaction from countries who have acknowledged that North Korea is becoming more involved in Russia's more than 2-1/2-year-old war against Ukraine.

Russia's ties with North Korea have grown since the start of the Ukraine war on February 24, 2022, particularly as Moscow faces increasing international isolation. In March, Russia vetoed a United Nations Security Council resolution, effectively ending international monitoring of sanctions against North Korea.