But on Feb. 10, less than two hours before Pence and his team were to meet with Kim Yo Jong, the younger sister of North Korean leader Kim Jong Un, and Kim Yong Nam, North Korea’s nominal head of state, the North Koreans pulled out of the scheduled meeting, according to Pence’s office.

The North Korean decision to withdraw from the meeting came after Pence used his trip to denounce the North’s nuclear ambitions and announce the “toughest and most aggressive” sanctions yet against the regime, while also taking steps to further solidify the U.S. alliance with Japan and South Korea.

The cancellation also came as Kim Jong Un, through his sister, invited South Korean President Moon Jae-in to Pyongyang to begin talks “soon” — a development that would be likely to cause consternation in Washington, where the Trump administration has been leading a campaign to put “maximum pressure” on the Kim regime to give up its nuclear program. Moon said through a spokesman that he would try to make the visit to the North.