In a threatening warning, US President Donald Trump has said that he will cancel talks with North Korea’s leader if they are ‘not fruitful’.

While speaking alongside Japanese Prime Minister Shinzo Abe at a recently held press conference, the US President on Wednesday was optimistic over a planned meeting with Kim Jong-Un, but said he would “respectfully leave” if the summit would turn out to be unproductive.

“I like always remaining flexible. We’ll remain flexible here,” he said.

Trump further added that a campaign of “maximum pressure” would continue “until North Korea denuclearises”.

Abe also called on the international community and the US not to reward Kim just for showing up for talks.

“Just because North Korea is responding to dialogue there should be no reward, maximum pressure should be maintained,” he said.

The comments from both leaders came at the end of a two-day meeting at Trump’s private Mar-a-Lago resort located in Florida.

Trump, on Wednesday, confirmed that CIA Director Mike Pompeo had met with President Kim, to secretly lay the groundwork for the upcoming summit.

“[Pompeo] got along with him really well, really great,” Trump said.

The United States top spy has yet to be confirmed as secretary of state who was announced to be the next chief, after Rex Tillerson was fired in March.

He is facing severe opposition in the Senate foreign relations committee and might have his nomination put to a vote in the Senate without the committee’s favourable recommendation being done – something that has not at all happened since votes were made public in the year 1925.

Trump accepted an invitation in March to meet Kim in a summit this summer.

The invitation followed months of diplomatic standoff between the two leaders exchange fiery military threats and personal insults.

Trump gave his “blessing” on Tuesday for inter-Korean talks, scheduled for April 27.

“Subject to a deal they have my blessing and they do have my blessing to discuss that,” Trump said.

A date for the meeting between Trump and Kim Jong-un has not yet been scheduled with the White House still weighing five potential locations, according to the comments made by President Trump to reporters on Tuesday.

Trump earlier also said that the summit would take place “sometime in May or early June” this year.

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