National security adviser John Bolton John BoltonMaximum pressure is keeping US troops in Iraq and Syria Woodward book trails Bolton, Mary Trump in first-week sales Ex-NSC official alleges 'unprecedented' intervention by White House aides in Bolton book review MORE said Sunday that multi-party talks with North Korea are not the Trump administration's preferred method for pursuing denuclearization.

“It’s not what our preference is,” Bolton said on "Fox News Sunday" when asked about multilateral discussions.

“I think Kim Jong Un Kim Jong UnSatellite images indicate North Korea preparing for massive military parade South Korea warns of underwater missile test launch by North Korea Trump says he didn't share classified information following Woodward book MORE, at least up until now, has wanted the one-on-one contact with the United States, which is what he has gotten,” Bolton added.

Russian President Vladimir Putin Vladimir Vladimirovich PutinNavalny released from hospital after suspected poisoning Ex-Trump national security adviser says US leaders 'making it easy for Putin' to meddle The Hill's Campaign Report: GOP set to ask SCOTUS to limit mail-in voting MORE suggested the revival of a past multilateral approach to denuclearization negotiations on Thursday after meeting with North Korean leader Kim Jong Un.

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In 2003, the U.S., North Korea, China, South Korea, Russia and Japan began the so-called six-party negotiations.

North Korea accepted a deal in September 2005 to end its nuclear weapons program in exchange for security, economic and energy benefits. However, in 2006, North Korea conducted its first nuclear test after sanctions disagreements.

President Trump and Kim have held bilateral meetings twice during Trump's presidency, but progress on denuclearization has stalled and the most recent meetings ended abruptly after the two leaders failed to reach an agreement.

Bolton said Sunday that a third meeting is on the table, adding that the president "feels pretty strongly" about another meeting with Kim.

“He feels pretty strongly about it,” Bolton said. “He’s said repeatedly he thinks he has a good relationship with Kim Jong Un and the six-party approach failed in the past.”