North Korean leader Kim Jong Un has rejected an invitation by South Korean President Moon Jae-in to a regional summit next week, Pyongyang’s state media said yesterday , in a stark illustration of the dire relations between the neighbours. South Korea is due to host a summit with Southeast Asian leaders in its port city of Busan from next Monday, and Moon had previously expressed hope that Kim would attend. Kim received a personal letter from Moon on November 5, North Korea’s official Korean Central News Agency (KCNA) said, but dismissed the prospect of the leader attending the summit.