North Korea fired two short-range missiles on Thursday, according to South Korean military, as the U.S. responded with an intercontinental ballistic missile test of their own just 10 minutes later. The launch, the second such move in less than a week, occurred around 4:30 p.m. local time from the North's Sino-ri missile base, the South's joint chiefs of staff said in a statement. The base is located around 130 miles north of the border with South Korea. The missiles flew 260 and 170 miles respectively, according to South Korean military officials. The U.S. insisted the timing of their own test was entirely coincidental. The base is believed to operate Rodong short- and medium-range ballistic missiles, according to the New York Times.