Kim Yong-nam (2nd L), president of the Presidium of the Supreme People's Assembly of the Democratic People's Republic of Korea (DPRK), arrives at Pyongyang International Airport, on Aug. 11, 2017. Kim Yong-nam returned to Pyongyang Friday after attending the swearing-in ceremony of Iranian President Hassan Rouhani in Tehran, Iran. (Xinhua/Cheng Dayu)
