US President Donald Trump says a meeting with North Korea could happen within weeks.
"I think we will have a meeting over the next three or four weeks," Trump said at a campaign rally in Washington, Michigan.
"It's going be a very important meeting, the denuclearisation of the Korean Peninsula."
Trump has told his South Korean counterpart Moon Jae In that it was good news for the world that the leaders of the two Koreas reaffirmed the goal of complete denuclearisation during their summit, Moon's office says.
During a phone call, Moon and Trump agreed on the need for an early summit between Trump and North Korean leader Kim Jong Un.