The lead-up to the summit has been marked by uncertainty and waves of frenetic diplomacy - at one point, Mr Trump even briefly called off the summit, after a senior North Korean official described remarks by US Vice-President Mike Pence as "stupid".
US President Donald Trump and North Korean leader Kim Jong-un will meet for an unprecedented summit today aimed at defusing tensions on the Korean peninsula.
Trump was first to arrive at the summit site, followed by Kim, both readying for the 9 a.m. meeting that culminated dizzying weeks of negotiations over logistics and policy. Both leaders have committed to "denuclearization of the Korean Peninsula", but it's unclear what specific steps North Korea is willing to take to get there.
On Monday, North Korean leader Kim Jong Un visited the luxury Marina Bay Sands resort as part of a tour of Singapore's attractions. Trump traveled to Singapore from Canada, where he attended a meeting with other world leaders.
Both leaders would offer "clear, specific, unequivocal statements" outlining a dismantlement of North Korean weapons, an inventory and removal of all nuclear fuel and an opening up to United Nations nuclear inspectors.
Mr Trump has said the highly anticipated talks represent a "one-time shot" at peace.
A man watches a TV news program about the summit at the Seoul Railway Station in South Korea on Monday.
Arriving at the Prime Minister's office after 1900 local time, Kim shook hands with Lee and his staff then sat down to begin talks in front of the cameras before the press was ushered out a few minutes later.
President Trump, Kim Jong Un meet for historic summit
An entrance glows outside the Capella Hotel on Sentosa Island in Singapore June 5, 2018.
Commenting for the first time on the summit, North Korea's state-run KCNA news agency earlier said the two sides would exchange "wide-ranging and profound views" to re-set relations.
But he has since lowered expectations, backing away from an original demand for North Korea's swift denuclearisation.
Trump advisers cast his actions as a show of strength before the Kim meeting.
The US president and the leader of DPRK are quite different people.
He accompanied the young leader at all four of his recent summits, twice with South Korean President Moon Jae-in and twice with Chinese President Xi Jinping.
The discussions between the United States and North Korea are ongoing and have moved more quickly than expected.
Even so, the summit continues to be a highly sensitive topic in North Korea and it is hard - even more so than usual - to get people to express their opinions about it.More news: E3 2018: Yarny's back. Unravel Two announced at EA Play
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