North Korean leader Kim Jong Un has arrived in Hanoi ahead of a second summit with US President Donald Trump.

Kim arrived in the Vietnamese capital after a journey that saw him cross the border with China on his personal train, before transferring to a limousine at Dong Dang railway station.

His US counterpart is on route from Washington in Air Force One and is expected to arrive in a few hours time.

The talks between the two come eight months after their historic summit in Singapore, which was the first meeting between a sitting US president and a North Korean leader.

The pair are due to sit down together for dinner on Wednesday, before more formal discussions get under way on Thursday.

Despite Kim's Singapore pledge to work towards the denuclearisation of the Korean peninsula, there has been little real movement.

President Trump, however, appears upbeat about the prospects for the Hanoi talks, telling reporters he expected "a very tremendous summit".

And in a tweet on Monday, he stressed the benefits to North Korea if it gave up its nuclear weapons.

"With complete Denuclearisation, North Korea will rapidly become an Economic Powerhouse," he said.

"Without it, just more of the same. Chairman Kim will make a wise decision".

He also said he was "Looking forward to a very productive Summit".

North Korea conducted its last nuclear test in September 2017 and last tested an intercontinental ballistic missile in November 2017.

And while there is no expectation that the Hanoi summit will lead to North Korea eliminating its nuclear weapons, it might see a declaration that the 1950-53 Korean War is at last formally over.

In return the US would want significant movement towards North Korean denuclearisation.

Main image: North Korean leader Kim Jong Un waves from a car after arriving by train in Dong Dang in the Vietnamese border town | Image: Minh Hoang/AP/Press Association Images