FILE - South Korean President Moon Jae-in shakes hands with North Korean leader Kim Jong Un during their summit at the truce village of Panmunjom, North Korea, May 27, 2018. Mr Trump suddenly withdrew from the meeting last week, only to announce a day later that it could still get back on track.
The upcoming meeting between a sitting US president and a North Korean leader will be the first of its kind.
In a joint statement published following a meeting between leftist South Korean President Moon Jae-in and Chinese Premier Li Keqiang, the two nations agreed that "the global community, including the United States, must actively take part in ensuring a bright future for North Korea through a security guarantee and support for its economic development".
In particular, he wants a formal end to the Korean conflict and is likely to seek worldwide recognition and guarantees against any strike by the USA forces stationed across the Demilitarized Zone (DMZ) in South Korea. "I told them today, take your time, we can go fast or we can go slowly".
"I will travel to Singapore on June 12".
The president reiterated that he had no plans to sign anything on June 12, but added that he looked forward to lifting economic sanctions now imposed on North Korea.
The announcement came after Trump met for more than 1 1/2 hours in the Oval Office with Kim Yong Chol, the vice-chairman of North Korea's Central Committee, who delivered a personal letter from Kim Jong Un.
This AP photo shows U.S. Secretary of State Mike Pompeo arriving at the venue of his dinner with Kim Yong-chol, a vice chairman of North Korea's ruling Workers' Party's Central Committee, in NY on May 30, 2018.
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But the president downplayed expectations for a quick deal on Pyongyang giving up its nuclear weapons, saying such an agreement won't be signed in Singapore, and the meeting will serve as the start of a process. He said the letter was "very nice" and "very interesting" - but then said he had not opened it yet.
A top North Korean official has departed the White House after meeting with President Donald Trump amid negotiations over a high-stakes summit.
Since that short-lived crisis, diplomats from both countries have conducted an intense flurry of talks, culminating this week when Pompeo sat down in NY with Kim's envoy. The North Korean delegation is heading to Washington D.C., where they will deliver a letter to President Trump from Kim.
Kim Yong Chol, vice chairman of the North Korean ruling party's central committee, was allowed into the United States despite being on a USA sanctions list.
Representatives of the Koreas, meanwhile, agreed Friday to hold "inter-Korean general-level military talks" June 14 to ease military tensions on the Korean Peninsula, according to South Korea's Unification Ministry.
Kim Yong Chol was greeted Friday by White House chief of staff John Kelly, who brought him inside the White House to meet President Donald Trump. Add North Korea as an interest to stay up to date on the latest North Korea news, video, and analysis from ABC News.
The letter comes as the two countries work to revive a Trump-Kim summit on June 12 in Singapore.
Russian Foreign Minister Sergey Lavrov walks with North Korean leader Kim Jong Un in Pyongyang during their meeting on Thursday.
He reported "good progress" is being made in talks between the two sides to revive an on-again, off-again nuclear summit.