North Korean leader Kim Jong Un appears to be considering “Plan B” for future nuclear negotiations amid a months-long diplomatic impasse, former ROK Permanent Representative to the UN Kim Sook said in a recent interview with NK News, warning that the Moon Jae-in administration must be prepared.

“So, I think we have to prepare our own Plan B. I think there are two possibilities for our Plan B,” Kim said, adding that these two Plan Bs would be “polar opposites.”

The South Korean diplomat, who also served as the country’s chief nuclear envoy and the counterpart of North Korea’s Kim Kye