Sunday, North Korea accused the United States of producing biological weapons in Ukraine, mirroring a Russian charge that the United Nations dismissed in March.

In February, Moscow ally Pyongyang cited US policies as the "root cause" of the Ukraine problem. This month, Pyongyang officially recognized two self-proclaimed pro-Russian separatist areas in eastern Ukraine, forcing Kyiv to sever diplomatic ties with North Korea.

Washington "established numerous biological labs in tens of countries and regions, including Ukraine, in violation of international treaties," the official Korean Central News Agency (KCNA) reported on Sunday, citing what Russia allegedly "detected."

In March, Moscow accused Washington of sponsoring research into the creation of biological weapons in Russia's nearly five-month-old invasion of Ukraine.

Washington and Kyiv denied the existence of biological weapons laboratories in Ukraine, with the US interpreting the charges as a sign that Moscow may employ similar tactics.

In March, the Under-Secretary-General for Disarmament Affairs of the United Nations, Izumi Nakamitsu, stated that the UN "was unaware of any biological weapons program in Ukraine."