North Korean leader Kim Jong Un says he will visit Seoul "in the near future", amid an ongoing summit with South Korea's Moon Jae-in in which he also renewed pledges to shut down a primary missile launch site and a key nuclear weapons complex if the US takes "corresponding" measures.
"The North expressed its willingness to continue taking additional steps, such as permanent shutdown of the Yongbyon nuclear facility, should the United States take corresponding measures under the spirit of the June 12 North Korea-US joint statement", the declaration said, as quoted by Yonhap.
As the motorcade carrying Moon and Kim to a state guesthouse wove through Pyongyang, huge crowds, mostly women clad in bright flowing dresses, lined the boulevard, waving pink flowers and chanting for reunification.
Kim Yo Jong first caught the public's attention as part of North Korea's delegation to the Pyeongchang Winter Olympics in February, and as the North Korean leader's special envoy to deliver his letter to Moon.
However, progress on the key issue of dismantling the North's nuclear arsenal was limited, even though the South's President Moon Jae-in had hoped to bring fresh momentum to stalled talks between his hosts and the United States.
South Korea's president is on a three-day visit to Pyongyang following two previous meetings with Mr Kim this year.
"There is a very good mood and a very good atmosphere, but this is not very specific", said Choi Jin-wook, a North Korea expert at Japan's Ritsumeikan University.
Mr Kim had conveyed the North's intent to dismantle certain facilities there, including a static test stand for liquid propellant engines for rockets, at the June summit with US President Donald Trump.
Yoon, South Korea's presidential senior secretary for public communications, said Moon's visit on Wednesday afternoon had been previously scheduled and "simply consists of viewing artworks".
Moon said denuclearization of the Korean Peninsula is a "real prospect" as the North agreed to come up with ways to denuclearize and permanently destroy all nuclear facilities.
Trump was enthusiastic about the summit, declaring that Kim "has agreed to allow Nuclear inspections, subject to final negotiations".
"These are good-faith gestures which will likely facilitate further and more substantive negotiations", Madden said, adding a second summit between Kim and Trump was "highly probable".
The two Koreas agreed to begin construction to reconnect railways and roads linking the countries within this year.
The two leaders also agreed to establish "buffer zones" along their land and sea borders to prevent the danger of accidental clashes.
Travelling with Mr Moon in North Korea are South Korean business tycoons, who met North Korean Deputy Prime Minister Ri Ryong Nam, who is in charge of economic affairs on Tuesday.
"The South and North agreed to actively participate jointly in worldwide competitions including the 2020 Summer Olympics and to cooperate in bidding for the South-North joint hosting of the 2032 Summer Olympics", the statement said.
Kim hailed his relationship with Moon, and said the pair would discuss "various issues.in a frank and open-minded manner".