On Friday, North Korea threatened to discontinue negotiations with the Trump administration over the Nordic nuclear weapons program and said its leader Kim Jong-un would soon decide to continue nuclear and missile tests.
Addressing diplomats and foreign correspondents At a press conference in Pyongyang, the North Korean capital, Deputy Foreign Minister Choe Son-hui said personal relations between Kim and Mr Trump were "still good and chemistry is mysteriously wonderful".
But she said secretary of state Mike Pompeo and John Bolton, Mr. Trump's national security adviser, had created an "atmosphere of hostility and distrust" that counteracted top leaders' negotiations in Hanoi last month.
"We have no intention of compromising with the United States in any form or much less desire or plan to implement this type of negotiation," said Ms Choe, according to a report by Pyongyang of The Associated Press, which has an agency there.
She also said that northern could terminate its self-imposed moratorium on nuclear and long-distance missile tests.
"Whether this moratorium should be maintained or not is the decision of our chairman of the state commissions commission," she said, referring to Kim by one of his several leadership titles. "He will make his decision in a short time."
The office of South Korea's president, Moon Jae-in, who did much to measure the conversation between the Nordic countries and the United States, said that the closely monitored situation "Whatever the situation, our government will try its best to resume North Korea. negotiations, "said in a statement.
The division of the Hanoi meeting revealed a wide gap between North Korea and the United States on how to proceed with nuclear power.
North Korea insisted, as before, on moving in phases. Hanoi offered Kim to dismantle plutonium, uranium enrichment and other facilities in the Yongbyon area, north of Pyongyang, and demanded that Washington, in return, impose important sanctions imposed in the Nordic countries since 2016.
Mr. Trump rejected the offer and demanded more significant North Korea is widely believed to drive at least one other uranium enrichment plant outside Yongbyon, as well as keep other parts of its nuclear program in secret locations around the hilly country.
United States officials said the North essentially demanded the lifting of all important sanctions on the Hanoi call, while North Korea said it just wanted to remove sanctions as pope US civil servants are afraid that early cancellation of sanctions would cease subsidizing the Nordic weapons program. The United Nations sanctions currently prohibit the entire Nordic region's most important exports, including coal, and drastically reduce their fuel imports.
Mr. Kim took a 65-hour train ride to meet Mr. Trump in Hanoi and it was seen as a great shame for him to return home without serious sanction relief.
By avoiding direct criticism of Mr. Trump and blaming Hanoi talk breakdown on his assistants, and Choe seemed to signal that North Korea was still hoping that Trump could mitigate Washington's position.
But since the Hanoi talks, analysts feared that North Korea could resume weapons testing in a bid to gain more leverage and Miss Choe's Friday warning might be a sign that North Korea is preparing to move in that direction.
"On our way back to our homeland, our chairman of the state business said," For what reason must we make this train journey again? "" Ms. Choe said on Friday, according to the AP, "I want to make it clear that the US stern position will put the situation in danger."
She said the United States had thro wn away "a golden opportunity" in Hanoi and added that the North did not was interested in negotiating unless Washington changed its "political calculation".
North Korea declared a moratorium on its nuclear and long-haul missiles after the flight test its Hwasong-15 intercontinental ballistic missile in November 2017. A resumption of tests could remove the approach between North Korea and the United States that began last year after a series wartime threats from both sides during Mr Trump's first year in office.
Mr. Trump has said that he and Mr Kim "fell in love" at their first meeting in Singapore in June and he has cited the Nordic test moratorium as one of his greatest diplomatic achievements. The Singapore Summit created a vague agreement to transform bilateral relations, build peace and "work towards complete denuclination of the Korean Peninsula."
Mr. Trump has said that he would be "very disappointed" if the Nordic countries resumed weapons testing.
After the dissolution of the Hanoi talks, the satellite image analysis concluded that North Korea had built up a partially disassembled structure at its Tongchang satellite launch site, which the country has used to test and develop engines and other technologies for its long-range missiles.
North Korea tested what it is said to be a hydrogen bomb in September 2017. It also tested three long-distance missiles in 2017. But outside missile experts, the Nordic countries may need more tests to acquire all the technology needed to build a reliable intercontinental ballistic missile.