North Korea says it conducted successful test of multiwarhead missile

It is the first known test of a so-called MIRV by Pyongyang, but South Korea is questioning the claim.

North Korea claims to have successfully tested a multiwarhead missile, a sophisticated weapon that would provide it with the means to overwhelm missile defences in the continental United States, after a launch that South Korea and Japan said had ended in failure.

Pyongyang “successfully conducted the separation and guidance control test of individual mobile warheads” on Wednesday, state…