Trump says he will walk out if North Korea talks 'not fruitful'

Donald Trump has threatened to cancel planned talks with North Korea's leader if they are 'not fruitful'.

"If we don't think it's going to be successful ... we won't have it," Trump said at a joint press conference with Japanese Prime Minister Shinzo Abe on Wednesday at Trump's Mar-a-Lago resort.

"If the meeting when I'm there is not fruitful, I will respectfully leave the meeting."

The US president and Japan's prime minister both insist the pressure will keep going on Kim Jong-un until he ends his nuclear programme.

Al Jazeera's Kimberly Halkett reports from West Palm Beach, Florida.