Donald Trump, the US president, is to meet Moon Jae-in, the South Korean leader, next week in Washington in a renewed effort to revive stalled negotiations with North Korea over its nuclear weapons programme.

The talks will be the first time the two leaders have met since the failed summit between Mr Trump and Kim Jong-un in Hanoi, Vietnam, at the end of February.

The summit was unexpectedly cut short when the Americans and North Koreans walked out before lunch after they failed to reach a deal on the extent of sanctions relief Pyongyang would get in exchange for steps to give up its nuclear assets.

The two sides initially claimed to have ended on a friendly note, but tensions have since risen over signs that North Korea has started to rebuild a key missile test site, the Sohae Satellite Launching Station, and Pyongyang has warned it is running out of patience.

Over the weekend it emerged that Kim had been blindsided at the summit when Mr Trump handed him a piece of paper that included a blunt call for the transfer of his nuclear weapons and bomb fuel to the US.

The document, seen by Reuters, was the first time the US president had explicitly told Kim what he meant by denuclearisation and it went far beyond the more incremental approach that Washington had publicly espoused in the run-up to the summit.