US President Donald Trump says that if his planned talks with North Korean leader Kim Jong-un are not fruitful he will "walk out".

At a joint news conference, he and Japanese PM Shinzo Abe said maximum pressure must be maintained on North Korea over nuclear disarmament.

Mr Abe is at the president's Mar-a-Lago resort in Florida for talks.

Earlier, Mr Trump confirmed that CIA Director Mike Pompeo had made a secret trip to North Korea to meet Mr Kim.

He said Mr Pompeo had forged a "good relationship" with Mr Kim - whom the US president was last year calling "little rocket man" - and that the meeting had gone "very smoothly".

The visit marked the highest-level contact between the US and North Korea since 2000.

Aida AYSA,

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