Libyan Prime Minister Fayez Serraj, U.S. Secretary of State John Kerry and Italian Foreign Minister Paolo Gentiloni (L to R) attend a news conference after a conference on the issue of the Islamic State (IS) in Libya, in Vienna, capital of Austria, on May 16, 2016. Leading foreign ministers from Europe and the Middle East met in the Austrian capital on Monday under the joint chairmanship of the United States and Italy to discuss how to bolster support for Libya's unity government in the face of deepening splits in the country over political legitimacy and growing threats by the Islamic State (IS). [Photo: Xinhua/Qian Yi]