North Korean leader Kim Jong Un was pictured Monday showing off a new, smaller nuclear warhead — as he vowed to increase the production of weapons-grade material to expand his nuclear arsenal.

SEOUL/BUSAN, March 28 (Reuters) - North Korea unveiled new, smaller nuclear warheads and vowed to produce more weapons-grade nuclear material to expand its arsenal, state media said on Tuesday ...

North Korea claimed to have test fired a new ballistic missile capable of carrying "a super-large warhead." South Korean officials cast doubt on this claim, speculating that the launch was ...

North Korea unveiled new, smaller nuclear warheads and vowed to produce more weapons-grade nuclear material to expand the country’s arsenal, state news agency KCNA said Tuesday, as a U.S ...