The underground tunnels where North Korea was testing nuclear weapons has reportedly collapsed, killing an estimated 200 people.
One hundred people died when the tunnel initially caved in while another 100 were killed when the tunnel continued to collapse on top of rescuers.
The structural integrity of the tunnels were compromised after dictator Kim Jong Un’s sixth nuclear test, which significantly weakened the mountain.
That Sept. 3 test of a hydrogen bomb, which was reportedly 10 times more powerful than the nuclear bomb the U.S. dropped on Hiroshima in 1945, triggered a 6.3-magnitude earthquake. A few minutes later a 4.1-magnitude earthquake was detected from the site, believed to be from a tunnel collapsing.
Satellite images obtained by 38 North, which specializes in North Korea issues, showed several landslides occurred after the Sept. 3 test. Also a possible “collapse chimney crater” was seen on Mount Mantap, possibly caused by the underground tests.
It’s unclear if the mountain will collapse in the near future, but the report said there was “significant cracking” and “irreversible strain” on the land because of the nuclear test.
There's also concern the collapse could trigger a massive radioactive leak on a scale of a Chernobyl or Fukushima. According to Chinese scientists, radioactive xenon-133 was detected in South Korea after Pyongyang's latest nuclear test.