Nuclear warhead News

North Korean leader Kim Jong Un said the test completed his country`s strategic weapons capability that includes atomic and hydrogen bombs and ICBMs.

Pyongyang also accused Seoul of escalating tensions and warned of a "merciless retaliatory response".

North Korea has said that a missile it tested on Sunday is capable of carrying a large nuclear warhead, state media reported on Monday.

South Korea, Japan and the US held a joint naval exercise today aimed at countering missile threats from North Korean submarines, Seoul's defence ministry said, amid mounting concerns over the hermit state's weapons programme.

North Korean leader Kim Jong-Un today said the country has successfully lab-tested a nuclear warhead re-entry, as he ordered upcoming warhead detonation and ballistic missile tests, just weeks after being slapped with tough, new UN sanctions.

Citing US government sources, the Britain's mirror.co.uk reported that North Korea may fire an explosive device as early as Sunday.