Donald Trump arrives in Singapore for Kim meet

US President Donald Trump touched down in Singapore on Sunday ahead of a historic summit with North Korea's leader Kim Jong Un at which Pyongyang's nuclear arsenal will top the agenda.

Trump and Kim are due to hold talks - the first-ever between a sitting US president and a North Korean leader - on Tuesday, with Trump describing the meeting as a "one-time shot" at peace.

Trump has said he hopes to win a legacy-making deal with the North to give up their nuclear weapons, though he has recently sought to manage expectations, saying that it may take more than one meeting.

The North, many experts believe, stands on the brink of being able to target the entire US mainland with its nuclear-armed missiles, and while there's deep scepticism that Kim will quickly give up those hard-won nukes, there's also some hope that diplomacy can replace the animosity between the US and the North.

Earlier in the day, North Korean Leader Kim Jong Un arrived in Singapore on Sunday ahead of meeting with US President Donald Trump on June 12.

Kim was greeted at Singapore's Changi airport by Singapore's Minister for Foreign Affairs, Vivian Balakrishnan.

Kim arrived in an Air China 747 that touched down at Changi Airport on Sunday, Straits Times said.

This will be the first summit of its kind between a leader of North Korea and a sitting US president. The North has faced crippling diplomatic and economic sanctions as it has advanced development of its nuclear and ballistic missile programs.