North Korea's Punggye-ri facility, buried inside a mountain near the border with China, was the staging ground for all six of the country's nuclear tests@AFPgraphics pic.twitter.com/SgK8xHm00G— AFP News Agency (@AFP) October 8, 2018
North Korea's Punggye-ri facility, buried inside a mountain near the border with China, was the staging ground for all six of the country's nuclear tests@AFPgraphics pic.twitter.com/SgK8xHm00G