Donald Trump and Kim Jong Un will likely meet again after New Year, the US vice president said Thursday, but insisted his government would not repeat past mistakes where “promises are broken.”

The US president and the North’s leader held a historic summit in Singapore earlier this year, signing a vaguely worded deal on denuclearisation.

North Korea has taken some steps since then — forgoing nuclear and missile tests, dismantling a missile test site and promising to also break up the country’s main nuclear complex if the US makes concessions.