Despite the turbulent summit preparations, on the same day, the Koreas seemed to get their negotiations back on track after South Korean President Moon Jae-in met with Kim Jong Un for the second time in 30 days.
South Korean Blue House spokesman Yoon Young-chan said President Moon Jae-in will reveal the outcome of his surprise meeting with Kim on Sunday.
The Blue House, South Korea's Presidential Office, said the two leaders held talks for two hours in the truce village of Panmunjom, where they had met last month and made a declaration vowing to improve ties.
The leaders of North and South Korea met for two hours Saturday to discuss the canceled summit with Donald Trump, less than a day after the USA leader signaled the meeting may be back on citing "very productive" talks between the two countries.
Trump announced on Thursday that he was cancelling the planned meeting with Kim, which had been slated for June 12 in Singapore. "And it's moving along pretty well". "We're going to see what happens", he later clarified.
At their April summit, Kim expressed his willingness to scrap his country's nuclear program - which would include its nuclear weapons - and pursue meetings with the USA and China.
While maintaining that Kim is committed to denuclearisation, Moon acknowledged Pyongyang and Washington may have differing expectations of what that means, and he urged both sides to hold working-level talks to resolve their differences.
After years of tension over Pyongyang's nuclear weapons program, Kim and Trump agreed this month to hold what would be the first meeting between a serving USA president and a North Korean leader.
Moon had just returned to Seoul after meeting with Trump at the White House.
The cancellation apparently followed Secretary of State Mike Pompeo setting some strict ground-rules ahead for the meeting, which in turn resulted in a North Korean minister reportedly saying that Pyongyang could make the USA "taste an appalling tragedy" and that a stalemate could lead to a "nuclear-to-nuclear showdown".
She also said it was up to the Americans whether they would "meet us at a meeting room or encounter us at nuclear-to-nuclear showdown".
The detente on the Korean Peninsula came as the North Korean leader engaged with Trump over their nuclear arsenal.
The reversal of statements the president issued Thursday could mean the U.S.
The meeting on Saturday is the latest chapter in a long-running diplomatic effort to end North Korea's nuclear weapons programme. "We would like to make known to the USA side once again that we have the intent to sit with the U.S. side to solve problem (s) regardless of ways at any time", he said to his official state media.