Donald Trump has said North Korea "will be met with fire and fury like the world has never seen" if it escalates its nuclear threat, after US media reported the dictatorship had produced a miniaturised warhead.
On Tuesday, The Washington Post published extracts from a Defence Intelligence Agency report which details North Korea's success in producing nuclear missiles.
"The IC [intelligence community] assesses North Korea has produced nuclear weapons for ballistic missile delivery, to include delivery by ICBM-class missiles," the assessment states, in an excerpt read to the newspaper.