North Korea says leader Kim Jong Un observed the first test-firings of missiles from a recently launched destroyer and called for speeding efforts to boost his navy’s nuclear attack capabilities.

North Korea earlier this week conducted the first test-firing of the weapons system of the new "Choe Hyon-class" warship it recently unveiled, state media KCNA reported on Wednesday. Cruise and anti-air missiles were launched and artillery fired as part of the test-firing attended by leader Kim Jong Un and senior officials,