"The recent easing situation on the peninsula is hard won, the political settlement process is faced with a rare historic opportunity", Lu Kang, ministry of foreign affairs (MFA) spokesperson said at the regular ministry briefing on Friday. "I don't really know that I want to speculate as to why it is they (North Koreans) took the actions, because I don't think we know".
"Under the current circumstances we hope both the DPRK and the United States can cherish the recent positive progress, stay patient, show goodwill, move in the same direction and continue to stay committed to promoting the denuclearisation of the peninsula", he added.
North Korea expressed regret about the decision in a statement on the state-run Korean Central News Agency.
Cheshire said: "If you think back to a year ago, when he was a pariah, well, he's had all these meetings where he has become more of an global (figure) than a despot back home, especially that historic meeting in the Demilitarised Zone between North and South Korea". "We would like to make known to the USA side once again that we have the intent to sit with the USA side to solve problem regardless of ways at any time". The Blue House said Thursday that it was trying to figure out Trump's intentions in canceling the summit.
He also added that North Korea remained open to resolving issues with Washington "regardless of ways, at any time, any format".
It seems that now, North Korea has changed its tune, and Trump is sticking to his word and considering going through with the summit.
Japan said it understands Mr Trump's cancellation.
"Sadly, based on the tremendous anger and open hostility displayed in your most recent statement, I feel it is inappropriate, at this time, to have the long-planned meeting", Mr Trump said in a letter to Mr Kim.
In a letter to Mr Kim announcing his decision to back away from the June 12 summit, Mr Trump pointed to America's vast military might and warned the rising nuclear power against any "foolish or reckless acts".
But the USA president has still left the door open for a possible meeting in future and this has led to speculation on what could have possibly proven to be the last nail in the coffin before the final decision was taken by the American side.
March 7: After visiting Kim in Pyongyang, South Korean presidential national security director Chung Eui-yong says Kim is willing to discuss the fate of his nuclear arsenal with the United States.
The decision blindsided treaty ally South Korea, which until now had brokered a remarkable detente between Washington and Pyongyang.
However, Trump's decision hasn't come as a complete shock for those who have been following-up the constant back-and-forth from both sides in the run-up to the June meeting.
He said: "His sudden and unilateral announcement to cancel the summit is something unexpected to us and we cannot but feel great regret for it".
In the letter, Trump also politely thanked Kim "for the release of the hostages who are now home with their families" and said some day he looked forward to meeting him.
A senior White House official said Pyongyang had demonstrated a "profound lack of good faith" in the run-up to the summit - including standing up the White House's deputy chief of staff, who had travelled to Singapore for preparatory talks.
"We got a lot of dial tones, Senator", he told committee chairman Bob Corker.
But many felt the Trump administration was rushing into a summit too quickly, with insufficient preparation. It often doesn't get mentioned but Donald Trump actually blames China for some of this impasse.