North Korea has conducted all six of its nuclear tests at the Punggye-ri site, which consists of tunnels dug beneath Mount Mantap in the northeast of the country. “With a heavy boom that shook Mount Mantap, dirt and broken rocks spilled out from the entrance,” South Korean media reported. North Korea announced in April it would suspend nuclear and missile tests and scrap the test site and instead pursue economic growth and peace. The apparent destruction of what North Korea says is its only nuclear test site has been widely welcomed as a positive, if largely symbolic, step toward resolving tension over its weapons. North Korean leader Kim has declared his nuclear force complete and amid speculation the site was obsolete anyway.

Source: Huffington Post May 24, 2018 11:31 UTC