North Korea condemned on Friday joint military drills between South Korea, Japan and the United States held this week, threatening to respond by

North Korea warned Friday that it would exercise its right to self-defense "more intensively" as it condemned recent joint air drills among South Korea, the United States and Japan.

North Korea warned Friday it will "more intensively" exercise the right to self-defense, denouncing South Korea, the United States and Japan for staging combined air drills, involving U.S. B-1B bombers.