Planned talks between Secretary of State Mike Pompeo and North Korean officials were postponed Thursday. Outgoing U.S. Ambassador to the U.N. Nikki Haley later said it was “because [the North Koreans] weren’t ready,” though recent reports suggest North Korea is unhappy with the lack of concessions from the U.S. in the ongoing talks over denuclearization, namely on the issue of easing sanctions. Trump has said he plans to meet with North Korean leader Kim Jong-un early next year to continue talks on a denuclearization agreement.