"These meetings are to prepare for the president's second summit with Chairman Kim, and to make further progress on the commitments that the President and Chairman Kim made at their first summit in Singapore, including complete denuclearization, transformation of the United States-North Korea relations, and building a lasting peace mechanism on the Korean Peninsula".
Officials have said that there must first be tangible progress in denuclearization negotiations between the U.S. and the North so that Washington can ease sanctions and allow inter-Korean cooperation projects to move forward. In his State of the Union address, Trump said that while "much work remains to be done", he was hopeful his "good" relationship with the North Korean leader would yield results in ongoing nuclear talks.
In recent months, North Korea has said it would consider a step-by-step approach, pairing actions to denuclearize with incentives, including the removal of economic sanctions crippling its economy.
"We have some hard work to do with the DPRK [North Korea] between now and then", Mr Biegun added, looking ahead to the Hanoi summit.
Biegun and Kim "discussed advancing President Trump and Chairman Kim's Singapore summit commitments of complete denuclearization, transforming US -D.P.R.K. relations, and building a lasting peace on the Korean Peninsula", it said.
As reported by state media, the meeting focused on the need to modernise the military while maintaining party discipline in the ranks.More news: Jose Mourinho avoids jail after pleading guilty to tax evasion
At their landmark summit in Singapore past year, the U.S. and North Korean leaders produced a vaguely worded document in which Kim pledged to work towards "the denuclearisation of the Korean Peninsula". "It will take place in Hanoi, Vietnam, on February 27 & 28", Trump said in a Twitter post on Friday.
The president predicted North Korea could become an "Economic Powerhouse", one that becomes "a different kind of Rocket - an Economic one!"
The sources cited information from North Korean diplomat Choe Kang Il, a deputy director-general for North American affairs at North Korea's Foreign Ministry.
A year of mostly fruitless diplomacy has led to serious doubts about Mr. Kim's sincerity and Trump's ability to force North Korea to significantly reduce the threat its nuclear weapons pose to the region and world.
But a report to the UN Security Council on Monday suggested North Korea was continuing its nuclear and missiles programmes, while making efforts to protect its facilities from possible future strike. But he didn't say where in Vietnam they would meet or what specifically they would discuss.