North and South Korea will hold their first summit in more than a decade next month, after North Korean leader Kim Jong-un pledged his commitment to denuclearisation as tensions ease between the old foes.

South Korean government officials have held high-level talks with their North Korean counterparts and set a date of 27 April for the summit.

The two Koreas had agreed earlier this month to hold such a summit in the demilitarised zone at the border truce village of Panmunjom, when South Korean President Moon Jae-in sent a delegation to Pyongyang to meet with Mr Kim.

A South Korean unification ministry official told reporters the two Koreas would hold a working-level meeting on 4 April 4 to discuss details for the summit, such as staffing support, security and news releases.

North and South Korea have experienced a significant easing in tensions since the Winter Olympics in the South in February.

They are technically still at war after the 1950-53 conflict ended with a ceasefire, not a truce.

Mr Kim is also scheduled to meet US President Donald Trump some time in May to discuss denuclearisation, although a time and place have not been set for that summit.

Kim Jong-un met with China President Xi Jinping (R) in Beijing earlier this week

Mr Kim met Chinese President Xi Jinping in a surprise visit to Beijing this week, his first trip outside the isolated North since he came to power in 2011.

Even more surprising was his pledge to denuclearise the Korean summit. That commitment was reported by Chinese state media, although North Korea's official media made no mention of it, or Mr Kim's anticipated meeting with Mr Trump.

Mr Trump and Kim had exchanged threats and insults in recent months. The US leader made the equally surprising announcement earlier this month that he was prepared to meet Kim to discuss the crisis over Pyongyang's development of nuclear weapons capable of hitting the US.

The North Korean leader's engagement with the international community has sparked speculation that he may try to meet other leaders.

Japan's Asahi newspaper said today Japan had sounded out the North Korean government about a bilateral summit.

Chinese President Xi Jinping promised Beijing would uphold its friendship with North Korea after his meeting with Mr Kim.

Mr Trump wrote on Twitter he had received a message from Mr Xi on Tuesday night that his meeting with Mr Kim "went very well" and that Mr Kim looked forward to meeting the US president.