epa06581583 Chung Eui-yong (C-L), chief of the presidential National Security Office, shakes hands with the send-off staff before heading to Pyongyang from Seoul Airport in Seongnam, south of Seoul, South Korea, 05 March 2018. A 10-member delegation, led by Chung, is expected to meet North Korean leader Kim Jong-un during their two-day visit with a mission to start denuclearization talks. EPA/YONHAP SOUTH KOREA OUT