North Korea's ambassador to the United Nations on Monday said his country regretted the slow progress made in talks with the U.S., in a speech in which he also slammed South Korea for the lack of improvement in relations.

Accusing Washington of continuing its "anachronistic hostile policy" against his country, DPRK ambassador to the UN Kim Song said North Korea and the U.S. were yet to end what he called the "vicious cycle of increased tension."