In a handout picture provided by the Syrian Arab News Agency (SANA) shows Syrian Deputy Prime Minister and Foreign Minister Walid Muallem (C-R) meeting with United Nations (UN) special envoy for Syria, Staffan de Mistura (C-L), during a brief visit in the Syrian capital Damascus on November 1, 2015. The visit took place two days after a major summit in Vienna, where de Mistura and representatives of world powers — but no Syrian officials — gathered to discuss the brutal crisis that has killed more than 250,000 people. AFP PHOTO / HO / SANA === RESTRICTED TO EDITORIAL USE – MANDATORY CREDIT “AFP PHOTO / HO / SANA” – NO MARKETING NO ADVERTISING CAMPAIGNS – DISTRIBUTED AS A SERVICE TO CLIENTS ===