North Korea’s main nuclear test site has collapsed following its latest bomb test and could be at risk of leaking radiation, research by Chinese geologists has shown.
As a result, the Punggye-ri site under Mount Mantap has been rendered unsafe for further testing and should be monitored, scientists from the University of Science and Technology of China have said.
Their findings raise questions about Kim Jong-un’s announcement his country was ceasing its testing programme ahead of planned meetings with the US president, Donald Trump, and his South Korean counterpart, Moon Jae-in.