(FILES) In this file photo taken on November 22, 2018 International Atomic Energy Agency (IAEA) chief Yukiya Amano poses ahead of a meeting of IAEA Board of Governors at the agency's headquarters in Vienna, Austria. - The UN's nuclear watchdog chief Yukiya Amano has died it was announcd by the IAEA on July 22, 2019. Amano stepped down in March for health reasons. (Photo by JOE KLAMAR / AFP)