In a photo takn on June 7, 2018 Singapore's foreign minister Vivian Balakrishnan arrives at Pyongyang international airport. Balakrishnan is making a two-day trip to Pyongyang, as preparations for a summit in the city-state between Donald Trump and Kim Jong Un accelerate. / AFP PHOTO / Kim Won-Jin

June 10, 2018 2:06 PM (UTC+8)