South Korea and Japan slammed Russia and North Korea over their ballistic missile transfers and troop deployments for the Ukraine war at a U.N. forum Tuesday, with Seoul calling on the Kremlin to end its illicit military cooperation with Pyongyang.

South Korean Ambassador to the U.N. Jihoon Cha delivered the remarks at the General Assembly debate about the “temporarily occupied territories of Ukraine,” expressing the ROK’s “serious concern” about “unabated” military cooperation between Russia and the DPRK.

He urged Russia and North Korea to “immediately cease” their “unlawful military cooperation,” which includes arms and ballistic missile transfers, troop deployments and