Ratcheting up the rhetoric, North Korea has warned early that its military has been cleared to wage an attack on the US using "smaller, lighter and diversified nuclear" weapons.

North Korea is to restart its plutonium reactor and increase production of nuclear weapons material in what is seen as its latest attempt to extract US concessions.

Since the video was broadcast early this month, North Korea's government has published regular propaganda in what - for those outside North Korea - amounts to farcical episodic delight.

A cyberattack caused computer networks at major South Korean banks and top TV broadcasters to crash simultaneously.

A White House official made two secret visits to North Korea last year in an effort to improve relations after new ruler Kim Jong-Un assumed power, former US officials say.

ESR scientists are monitoring the Pacific for airborne radioactivity resulting from yesterday's underground nuclear test in North Korea.

Foreign Affairs Minister Murray McCully says he is seriously concerned by reports that North Korea plans to launch a satellite this month using a long-range ballistic missile.

Given rare permission as a travel writer to visit North Korea, Carole Cadwalladr gets a (strictly controlled) tour of the notorious state.

Prime Minister John Key has used the memory of the Korean War in which 45 New Zealanders died to...

Getting to North Korea is, in reality, easy and it is certainly the oddest country, but is not for everyone writes Chris Pritchard.

Fears over North Korea's nuclear bomb hide a deeper truth, writes Jared Genser.