North Korea’s nuclear test site under Mount Mantap mountain in the northwest part of the country has collapsed, two separate groups of Chinese scientist confirmed Wednesday.

The collapse puts China and other nearby nations at risk of radioactive exposure, and could be the cause of North Korean leader Kim Jong Un declaring Friday he would freeze nuclear tests and shut down the site, the South China Morning Post reported.

Recommended Stories

Trump, Chinese President Xi Jinping talk North Korea ahead of Kim Jong Un meeting

Trump: US to stop war games, North Korea agrees to destroy missile site

Kim Jong Un’s North Korea fires two ballistic missiles one day before Kamala Harris’s DMZ visit