Pompeo tweeted on his arrival in Seoul that he had met with Kim and that they "continue to make progress on agreements made at Singapore Summit."
He said, "Thanks for hosting me and my team."
Pompeo had flown to Pyongyang from Tokyo after talks there with Japan's prime minister during which he pledged the Trump administration would coordinate and unify its strategy for denuclearization with allies. Japan has been wary of the initiative but South Korea has embraced it.
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