Director General of the International Atomic Energy Agency, IAEA, Yukiya Amano of Japan, addresses the media during a news conference after a meeting of the IAEA board of governors at the International Center in Vienna, Austria, Monday, March 5, 2018.
The Secretariat did not give a cause of death for Amano, or say when he died. The IAEA said its flag will be lowered to half-mast. In the letter, Amano added that he was "very proud of our achievements and grateful" to IAEA member states and agency staff. According to the agency's biography, Amano was Japan's representative to the agency from 2005 until his election as director general in July 2009, including a stint as chair of its board of governors from 2005-2006.