President Donald Trump tweeted on Saturday that he is open to a third summit with North Korean leader Kim Jong Un, citing their "excellent" personal relationship and understanding of "where we each stand".
"A third Summit would be good in that we fully understand where we each stand".
Speaking in Paraguay, Pompeo, however, would not tell reporters whether there are talks about another meeting between President Donald Trump and North Korean Chairman Kim Jong Un.
"What is needed is for the U.S.to stop its current way of calculation, and come to us with a new calculation", Kim said in a speech to the Supreme People's Assembly on Friday, KCNA said.
He also set the United States a deadline of "until the end of this year" to demonstrate that new talks could be more productive.
According to the Korean Central News Agency, or KCNA, Kim blamed the collapse of his summit with Trump in February on what he described as unilateral demands by the United States, which he said raised questions over whether Washington has genuine willingness to improve relations. In a leadership shuffle announced on Friday, Mr Kim consolidated his power and granted new legitimacy to officials involved in the talks.
Kim repeated earlier claims that North Korea's crippled economy would persevere through heavy global sanctions imposed over its nuclear weapons program and that he wouldn't "obsess over summitry with the United States out of thirst for sanctions relief". South Korean media has speculated he will take the blame for the unsuccessful Hanoi summit.
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Mr. Trump's remarks on Saturday echoed comments he made at his meeting with Moon.
During a rare speech to the Supreme People's Assembly, he said: "By that sort of thinking, the United States will not be able to move us one iota even if they sat with us a hundred thousand times, and will not be able to get what it wants at all".
"If the U.S. adopts a correct posture and comes forward for the third DPRK-U.S. summit with a certain methodology that can be shared with us, we can think of holding one more talks", Kim said.
Telling North Korea's Supreme People's Assembly that US diplomats came to the last meeting, which ended abruptly in late February with no agreement, without "a clear direction and methodology", Kim had tough words for the Trump administration in his speech Friday. "Our government will do what we can in order to maintain the current momentum for dialog and help negotiations between the United States and North Korea resume at an early date", Mr Moon's office said in a text message.
"The confrontation is likely to continue as there's a low chance that the USA will change its position", Mr Shin said.
Trump, however, signaled no marked change in his stance on sanctions relief until the North's complete denuclearization, though he didn't shut out the possibility of smaller deals with Pyongyang.
Ms Choe Son Hui, another official who has played a highly visible role in the United States talks, was promoted to the job of first vice foreign minister, a move that could give her even more sway if discussions resume.
In the months since Hanoi, there have been no known follow-up negotiations between Washington and Pyongyang. Denuclearization talks, however, have been stalled since the breakdown of their second summit in Hanoi late February.