Kim Jong-un oversees missile test that North Korea claims advances nuclear program

Leader appears well pleased with latest test of what state media reported was a new type of tactical guided weapon

North Korea has test-fired a new weapons system, under the supervision of leader Kim Jong-un, that it claims will boost the efficiency of its tactical nuclear weapons, state media reported.

The new-type tactical guided weapon ... is of great significance in drastically improving the firepower of the frontline long-range artillery units and enhancing the efficiency in the operation of tactical nukes," the official Korean Central News Agency said early on Sunday, without specifying when the test took place. It said the test was successful.