Washington (CNN) President Donald Trump confirmed Wednesday morning that CIA Director Mike Pompeo visited North Korea and met with leader Kim Jong Un.

"Mike Pompeo met with Kim Jong Un in North Korea last week. Meeting went very smoothly and a good relationship was formed," the President tweeted. "Details of Summit are being worked out now. Denuclearization will be a great thing for World, but also for North Korea!"

Mike Pompeo met with Kim Jong Un in North Korea last week. Meeting went very smoothly and a good relationship was formed. Details of Summit are being worked out now. Denuclearization will be a great thing for World, but also for North Korea! — Donald J. Trump (@realDonaldTrump) April 18, 2018

A senior White House official later told CNN that the meeting occurred on Easter weekend, as was reported by CNN and other outlets Tuesday night.

Trump and Kim are set to meet in late May or early June in what would be the first face-to-face encounter between a sitting US President and a North Korean leader.

During a joint news conference with Japanese Prime Minister Shinzo Abe on Tuesday, Trump said "very high levels" of discussion between Washington and Pyongyang are already underway, adding that they "have had direct talks." The White House later clarified Trump's comments to make it clear he has not yet talked directly with Kim.

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