Syria's opposition delegation leader Nasr al-Hariri attends a press conference after meeting with United Nations Special Envoy for Syria Staffan de Mistura in Geneva, Switzerland, on March 24, 2017. The United Nations Special Envoy for Syria Staffan de Mistura on Friday held bilateral discussions with rival Syrian delegations involved in the latest round of peace talks seeking to broker a political end to the six-year Syrian crisis. (Xinhua/Xu Jinquan)