A man in Seoul watches a news report about a 2016 North Korean nuclear test under Mount Mantap. File photo: AP

North Korea nuclear test site has signs of ‘Tired Mountain Syndrome’ after five blasts

The last five of Pyongyang’s six nuclear tests have all been carried out under Mount Mantap at the Punggye-ri nuclear test site in the north-west of the country

Topic |   North Korea nuclear crisis
A man in Seoul watches a news report about a 2016 North Korean nuclear test under Mount Mantap. File photo: AP
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