North Korea Says Missile Launches Were Live-Fire Drill

North Korea said its latest missile launches were part of a joint firepower attack drill by long-range artillery and missile units, according to state media. The drill demonstrated what Pyongyang called "huge destructive power" and was aimed at stepping up readiness for a swift retaliatory strike against an enemy. North Korean leader Kim Jong Un did not take part in the exercise, the Korean Central News Agency reported. The United States dismissed the launches as no immediate threat.