A man walks past a television screen showing file footage of a North Korean missile launch, at a railway station in Seoul on April 5, 2017. Nuclear-armed North Korea fired a ballistic missile into the Sea of Japan on April 5, just ahead of a highly-anticipated China-US summit at which Pyongyangs accelerating atomic weapons programme is set to top the agenda. / AFP PHOTO / JUNG Yeon-Je (Photo credit should read JUNG YEON-JE/AFP/Getty Images)
