An extraordinary meeting of the UN nuclear watchdog's 35-nation Board of Governors called by Russia to discuss attacks on the Russian-held Zaporizhzhia Nuclear Power Plant in Ukraine is due to be held on Thursday, four diplomats said. Drones attacked the plant, Europe's biggest, on Sunday, hitting one reactor building, the International Atomic Energy Agency has said, adding that nuclear safety was unaffected. Russia and Ukraine have repeatedly accused one another of targeting Zaporizhzhia; both sides deny doing so.