U.N. atomic watchdog chief Rafael Grossi said on Friday he plans to issue a report on the safety of the Russian-held Zaporizhzhia nuclear power plant in Ukraine early next week. Speaking at a news conference upon his return to Vienna, Grossi said six International Atomic Energy Agency staff members remain at Zaporizhzhia, Europe’s largest nuclear plant, after he led a 14-person mission there. He added that the number would be reduced to two next week and those two would be the IAEA’s continuous presence there in the longer term.