SEOUL: North Korean leader Kim Jong-Un called on his military to continue building up Pyongyang’s nuclear force after issuing orders for the latest test-firing of ballistic missiles, the North’s state media said on Tuesday. North Korea test-fired three missiles into the sea on Monday, Seoul said, in a new show of force as world leaders met for the Group of 20 summit in China. “He stressed the need to continue making miraculous achievements in bolstering up the nuclear force one after another in this historic year,” the official KCNA news agency said. Kim was guiding a fire drill of his military aimed at checking the “capabilities of the units” and the accuracy of the “improved ballistic rockets deployed for action,” it added. Describing the combat performance of the rockets as “perfect,” KCNA said Kim expressed “great satisfaction over the successful successive firing drill of ballistic rockets.” South Korea’s defense ministry said the missiles were speculated to be Rodong missiles with a range of 1,000 kilometers (620 miles), and that they were fired without navigational warning to Japan.