People in Pyongyang watch a public announcement on a video screen saying North Korea had successfully tested a hydrogen bomb. The blast on Sunday was the country’s most powerful to date. Photo: AFP

Landslides detected at North Korea’s nuclear test site after Chinese expert warns blast zone at risk of imploding

If mountain under which last five bombs were ‘almost certainly’ detonated crumbles, radiation would leak across region, expert warns

Topic |   North Korea nuclear crisis

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People in Pyongyang watch a public announcement on a video screen saying North Korea had successfully tested a hydrogen bomb. The blast on Sunday was the country’s most powerful to date. Photo: AFP
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