AKIPRESS.COM - US President Donald Trump has said there is a "very substantial chance" a historic summit with North Korea's Kim Jong-un next month may not happen, BBC reported.

He said the North must meet conditions for the summit to go ahead though if it did not, it might happen "later".

Mr Trump was speaking as he received South Korea's President Moon Jae-in at the White House.

The North has said it may cancel the summit if the US insists on it giving up nuclear weapons unilaterally.

Mr Trump did not say what conditions the US had set for the summit but, asked by a reporter about the North's arsenal, he said "denuclearisation must take place".

The 12 June summit is due to take place in Singapore. It follows a historic meeting between the two Korean leaders in April.