U.S. Secretary of State Mike Pompeo has said he is "confident" there will be a third summit between President Donald Trump and North Korean leader Kim Jong Un, noting that talks with Pyongyang are continuing after a February nuclear summit in Hanoi failed to yield a deal.

Asked if the meeting would come soon, Pompeo told "CBS This Morning" on Friday that he hoped that would be the case.

"Look, we came out of Hanoi with a deeper understanding of each other, the positions that the two sides had," Pompeo said. "The two leaders were able to make progress in that respect. We didn't get as far as the world is demanding."