The International Atomic Energy Agency's director-general says the safety of Europe's largest nuclear plant, currently under Russian occupation in Ukraine, is a "red light blinking" as his organization tries in vain to get access for work including repairs. A day after Ukraine marked the anniversary of the 1986 deadly disaster at the Chernobyl nuclear plant, itself occupied for weeks by Russian soldiers after their February invasion, Rafael Mariano Grossi turned the focus to the nuclear plant at Zaporizhzhia, which remains occupied.