"We have no time limit".
Before the Singapore summit, the Trump administration said denuclearization should start "without delay", and after the meeting, it spoke of the process beginning "very quickly".
The apparent change of heart comes as the US' relationship with Pyongyang is "very good", and the American "hostages" are back, according to Trump. If the door's open in September, I will invite Kanye West with me to go to North Korea with me, ' Rodman told Us Weekly on Tuesday.
Trump tweeted the remark on Wednesday, promising "big benefits and exciting future" for Pyongyang "at end of process." .
Russian Federation has agreed to help the USA negotiate with North Korea, President Donald Trump said Wednesday ― the same day a summit between Moscow and Pyongyang was announced.
Trump's remarks come days after Secretary of State Mike Pompeo said "firm commitments" were made during a meeting between USA and North Korea officials at the Demilitarized Zone to discuss the repatriation of American service members' remains from the Korean War. "There is no rush, the sanctions remain!"
Blue Origin tests new motor during blastoff from Texas facility
On Wednesday's flight, Blue Origin says it will push the New Shepard rocket to its limits with a high-altitude escape motor test. Accompanying the dummy aboard the capsule were NASA atmospheric science experiments and payloads from paying customers.
Speaking on CBS's Face the Nation shortly before Mike Pompeo, the USA secretary of state, flew to Pyongyang for the most recent round of discussions on the issue, Mr Bolton said "I am sure that ..."
US and North Korean officials met on the inter-Korean border on Sunday to discuss the return of remains.
Since the meeting between Mr Trump and Mr Kim on 12 June, there has been little reported progress towards denuclearisation.
Repatriating remains of U.S. soldiers who perished during the 1950-53 conflict was part of a written agreement signed by Kim and Trump during their landmark summit in Singapore last month.
"So many people at the higher ends of intelligence loved my press conference performance in Helsinki", Trump said in a series of early-morning tweets about their Monday summit.