It is the strongest indication yet a summit between US President Donald Trump and the North Korea leader may still take place.
Kim Jong-un’s right-hand man has been seen on his way to the United States.
Kim Yong-chol is the vice chairman of North Korea’s ruling Workers’ Party.
He is considered to be a close confidante of Kim Jong-un.
And there has been plenty of movement from other players involved as well.
Al Jazeera’s Andrew Thomas reports from Seoul.
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