Japan’s Ground Self-Defence Force Patriot Advanced Capability-3 (PAC-3) missile interceptor unit is deployed in Tokyo to counter North Korea’s possible launch of ballistic missile. Asian powers including Japan and South Korea have expressed concern over the mooted launch of what the North described as a satellite. Photograph: Franck Robichon/EPA.

News of North Korean plans to launch a satellite and rocket have been met with concern by regional neighbours Japan, South Korea and even ally China.(...)

Chinese foreign minister Wang Yi (right) prepares to shake hands with US secretary of state John Kerry  at the Ministry of Foreign Affairs in Beijing,  January 27th, 2016. Photograph: Fred Dufour/AFP/Getty Images

North Korea’s nuclear ambitions and China’s territorial claims in the South China Sea topped the agenda as US secretary of state John Kerry met Chines(...)

A handout picture provided by the South Korean Air Force on Monday shows a US B-52 strategic bomber flying over South Korea with fighter jets from the two countries, in a show of force following North Korea’s nuclear test. Photograph: EPA/South Korean Air Force

Five of the six regional powers involved in the now-stalled nuclear negotiations with North Korea – China, Russia, Japan, the US and South Korea – wil(...)

 US Lieutenant General Terrence J. O’Shaughnessy, deputy Commander of the US Forces Korea, speaks in front of a US F-16 fighter jet during a press briefing on the flight by a US B-52 Stratofortress over South Korea at Osan Air Base in Pyeongtaek, South Korea on Sunday. Photograph: EPA

The United States deployed a B-52 bomber on a low-level flight over its ally South Korea on Sunday, in a show of force following North Korea’s nuclea(...)

North Koreans dance to celebrate an alleged ‘successful hydrogen bomb’ test  in Pyongyang, North Korea. Photograph: Kyodo/Reuters

South Korea’s loudspeaker broadcasts aimed at North Korea have pushed the rivals to the “brink of war,” a top North Korean official has told a propaga(...)

South Korean soldiers draw down a cover from loudspeakers, just south of the demilitarised zone separating North and South Korea, in Yeoncheon, South Korea. Photograph: Reuters

South Korea broadcasted a high-decibel propaganda barrage across its border with North Korea on Friday in retaliation for its nuclear test, while the(...)

South Korean protesters attend an anti-North Korea rally on Thursday in Seoul, South Korea. Photograph: Chung Sung-Jun/Getty Images

North Korea’s test of a possible hydrogen bomb has escalated regional tensions, with South Korea and the United States discussing ways to deploy stra(...)

South Korean protesters burn an effigy of North Korea leader Kim Jong-Un during a  rally against development of nuclear weapons on January 7th, 2016 in Seoul, South Korea. Photograph: Chung Sung-Jun/Getty Images

The United States called on China on Thursday to end its “business as usual” relationship with its ally North Korea after Pyongyang defied world power(...)

Photograph released by North Korea’s official Korean Central News Agency (KCNA) shows Kim Jong-Un signing a document for a hydrogen bomb test in Pyongyang. Photograph: AFP/Getty Images

North Korea drew threats of further sanctions from the UN after claiming to have tested a nuclear bomb on Wednesday The underground explosion trigger(...)

In this photograph released by North Korea’s official news agency people in Pyongyang celebrate the success of what the secretive state claimed was its first hydrogen bomb test.  Photograph: AFP/Getty Images

The United Nations Security Council has strongly condemned North Korea’s nuclear test and is pledging to pursue new sanctions. North Korea said it s(...)