"(FILES) This file photo taken on May 10, 2017 shows UN Secretary General, António Guterres attending the London Somalia Conference at Lancaster House in London. UN Secretary-General Antonio Guterres on May 15, 2017 condemned North Korea over its launch of a ballistic missile and called on Pyongyang to return to denuclearization. ""This action is in violation of Security Council resolutions and a threat to peace and security in the region,"" said Guterres in a statement by his spokesman.   / AFP PHOTO / JACK HILL"