Donald Trump has threatened Kim Jong-un with the same fate as Muammar Gaddafi if he doesn't stick to their deal to end his nuclear weapons programme.
The US President was asked about the recent "Libyan model" suggestion made by his national security adviser, John Bolton.
The model Bolton referred to was Gaddafi's agreement in December 2003 to surrender his nuclear weapons programme which allowed his uranium centrifuges to be shipped out to the US.
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However, Trump interpreted the "Libyan model" to mean the 2011 Nato intervention in Libya which ultimately led to Gaddafi's murder by rebels in Tripoli.
"If you look at that model with Gaddafi - that was a total decimation. We went in there to beat him.
"Now that model would take place if we don't make a deal, most likely," Trump told the Guardian.
However, Trump said Kim Jong-Un will be happy with the agreement set for the 12th of June In Singapore.
"This with Kim Jong-un would be something where he would be there. He would be running his country. His country would be very rich," he said.
He said the North Korean leader was cooperating with trade discussions.
"We're willing to do a lot, and he's willing to do a lot also."
Former US negotiator Joel Wit said "This is probably the wrong time to be making threats, three weeks before the summit."
Summit talks are in a precarious state with a senior North Korean official saying the North Korean leader would not take part in a summit with such "one-sided" goals.