Russia and Ukraine accused each other of shelling Europe's biggest nuclear power plant in the Zaporizhzhia region as the world on Saturday marked the 77th anniversary of the first atomic bomb attack in the Japanese city of Hiroshima, with UN chief Antonio Guterres warning against nuclear arms build-up amid fears of another such attack in the context of war in Ukraine. Read about the day’s events as they unfolded on our live blog. All times are Paris time (GMT+2).
