As violence intensifies on the ground in Ukraine, the diplomatic tension has also ratcheted up a notch. As Russia accuses NATO of waging a proxy war, the UN chief Antonio Guterres is in Moscow, asking for cooperation over humanitarian access to places like Mariupol. Sergei Lavrov says Moscow is "ready to cooperate" with the UN to help civilians, but only a day earlier, he warned that World War III was a real danger.
Produced by Alessandro Xenos, Léopoldine Iribarren and Antonia Kerrigan.
