N. Korea 'willing to denuclearise', Moon says

North Korea is "willing to denuclearise" and the US is prepared to end hostile relations, President Moon Jae-in said Thursday as he struck an upbeat tone ahead of his third meeting with Kim Jong Un next week.

The summit will be the third between the leaders of North and South Korea this year and comes as talks between Washington and Pyongyang over dismantling the North's nuclear arsenal have stalled.

Moon conceded there was a "blockage" and both sides needed to compromise to make progress on the controversial subject.

"North Korea is willing to denuclearise and therefore willing to discard existing nuclear weapons... and the US is willing to end hostile relations with the North and provide security guarantees," Moon said.

"But there is a blockage as both sides are demanding each other to act first and I think they will be able to find a point of compromise."