North Korea test-fires 2 more missiles as US sends carrier

North Korea has fired two short-range ballistic missiles into the sea as the United States moves an aircraft carrier to neighboring waters for exercises with South Korea. South Korea’s Joint Chiefs of Staff said the North's missiles flew cross-country after being fired from a western inland area south of Pyongyang. The launches were the North’s seventh missile event this month. They underscore heightening tensions as the pace of both North Korean weapons tests and the U.S.-South Korea joint military exercises has accelerated in a cycle of tit-for-tat responses. The American aircraft carrier USS Nimitz and its strike group are to arrive in Busan on Tuesday. South Korea’s Defense Ministry said joint exercises are planned.