Updated 3pm - North Korean leader Kim Jong Un and US President Donald Trump have arrived in Singapore for their historic meeting on Tuesday.
When Trump and Kim meet on the resort island of Sentosa they will be making history even before they start.
Enemies since the 1950-53 Korean War, the leaders of North Korea and the United States have never met previously - or even spoken on the phone.
Kim arrived at Singapore's Changi Airport early on Sunday (Malta time) after his longest trip overseas as head of state wearing his trademark dark Maoist suit and distinctive high cut hairstyle.
"Welcomed Chairman Kim Jong Un, who has just arrived in Singapore," Vivian Balakrishnan, the Singapore Foreign Minister said on Twitter, with a picture of him shaking hands with Kim.
The US delegation, en route from the G7 meeting in Canada, arrived in the early afternoon. Trump is set to meet with Singapore's Prime Minister Lee Hsien Loong on Monday.
Officials onboard Air Force One included Secretary of State Mike Pompeo, National Security Adviser John Bolton, White House Chief of Staff John Kelly and White House Press Secretary Sarah Sanders.
At stake at the summit are North Korea's nuclear weapons and peace on the Korean Peninsula. North Korea spent decades developing nuclear weapons, culminating in the test of a thermonuclear device in 2017. It also successfully tested missiles that had enough range to reach the US mainland.
The tests came amid a campaign of "maximum pressure," led by the United States, that tightened economic sanctions against North Korea and raised the possibility of military action.
In a New Year's address, Kim said his country had completed development of its nuclear programme and would focus on economic development, suggesting a meeting with South Korea.
After a flurry of contacts between the two Koreas, South Korean officials suggested to Trump in March that Kim would be willing to meet face-to-face.
The summit comes after weeks of sometimes-contentious discussions and was briefly cancelled amid North Korean outrage over messaging from some U.S. advisers.
Many remain sceptical Kim will ever completely abandon his nuclear programmes. They believe his latest engagement is aimed at getting the United States to ease crippling economic sanctions that have squeezed the impoverished country.
For Trump, a successful summit will see him achieve badly needed kudos on the international stage ahead of congressional elections in November.