North Korea's state-run television KRT released still photographs of leader Kim Jong Un watching the second strike drill in less than a week.
A KRT news reader said that Kim ordered the military to boost its strike capability as he directed another missile firing, as tensions grew over tests that appeared to show preparations for a new advanced missile system.
According to South Korea's Joint Chiefs of Staff the two missiles fired on Thursday flew east from the northwestern area of Kusong. They covered distances of 420 km and 270km and reached an altitude of about 50 km before falling into the sea.