Kim Jong Un Oversees Test of New Anti-Air Missile, KCNA Says

North Korean leader Kim Jong Un oversaw the testing of a new type of high-altitude, long-range missile and inspected work being done to build a nuclear-powered submarine, state media reported, ratcheting up tensions after a US nuclear submarine arrived at the South Korean port of Busan.

The launched missile accurately hit a mock target at an altitude of 200 kilometers (124 miles) in exercises Wednesday, the Korean Central News Agency reported on Thursday. In a separate statement, KCNA vowed to consider “countermeasures corresponding to the US nuclear muscle flexing” in response to the US submarine’s arrival in South Korean waters.