Mike Pence was scheduled to meet Kim Jong Un's sister, North Koreans cancelled meeting 'at last minute'

US Vice President Mike Pence was scheduled to meet with North Korean officials, including leader Kim Jong Un's sister, while in South Korea for the Winter Olympics this month but the North Koreans cancelled at the last minute, US officials said on Tuesday.

"North Korea dangled a meeting in hopes of the Vice President softening his message, which would have ceded the world stage for their propaganda during the Olympics," Pence's chief of staff, Nick Ayers, said in a statement.

But after Pence condemned North Korean human rights abuses and announced plans for new economic sanctions, "they walked away from a meeting or perhaps they were never sincere about sitting down," Ayers said.

Pence was going to meet with North Korean leader Kim Jong Un's younger sister, Kim Yo Jong, and the nominal head of state, Kim Yong Nam, but the North Koreans called off the Feb. 10 meeting two hours before it was set to start, a US official said, confirming a story first reported by the Washington Post.

The encounter would have been the first scheduled between senior officials from the Trump administration and Pyongyang, which are in a standoff over the North's development of nuclear weapons capable of hitting the United States.

"This administration will stand in the way of Kim's desire to whitewash their murderous regime with nice photo ops at the Olympics. Perhaps that's why they walked away from a meeting or perhaps they were never sincere about sitting down," Ayers said in the statement.

Pence had criticized Pyongyang's nuclear ambitions and announced the "toughest and most aggressive" sanctions against Pyongyang yet, while also moving to strengthen the US alliance with Japan and South Korea.

Kim Jong Un, through his sister, invited South Korean President Moon Jae-in to Pyongyang to begin talks "soon."

Signs of a North-South thaw have prompted speculation that it could lead to direct talks between Washington and Pyongyang after months of tension and exchanges of insults between US President Donald Trump and Kim, fueling fears of war.

North Korea has refrained from carrying out any weapons tests since late November, when it shot off its largest intercontinental ballistic missile.

"The President made a decision that if they wanted to talk, we would deliver our uncompromising message. If they asked for a meeting, we would meet. He also made clear that until they agreed to complete denuclearization we weren't going to change any of our positions or negotiate," Ayers said, echoing comments made by Pence since he left the Olympics and other US officials.