After North Korea’s most powerful ever nuclear test underground at Punggye-ri in the country’s northeast, Japan’s TV Asahi reports that up to 200 have been killed in a tunnel collapse.
In early September, North Korea detonated a nuclear device under a mountain that experts assess to have been a hydrogen bomb about ten times more powerful than the first atomic bombs dropped on Japan at the close of World War II.
Since then, satellite imagery has revealed that the mountain above the test site has since suffered a series of landslides, and seismic aftershocks, thought to have resulted from the blast.
North Korean sources told TV Asahi that initially, a tunnel collapsed on 100 workers, and an additional 100 went in to rescue them, only to die themselves under the unstable mountain.
The tunnels in and out of the test site had been damaged previously, and the workers may have been clearing or repairing the tunnels to resume nuclear testing.