SEOUL (Reuters) -North Korean leader Kim Jong Un inspected military industrial factories, calling them to expand production of shells that meet modern warfare needs, state media KCNA said on Saturday.

North Korea has launched a 5,000-ton destroyer at the second try, state media reported on Friday, after the warship was damaged during an earlier botched attempt that had left it capsized in the water.

North Korea has successfully relaunched its second destroyer after the vessel was damaged during a failed launch in May. Leader Kim Jong-un, speaking a day before the second ceremony, pledged to build two new warships each year to counter perceived external threats.