Nuclear security

Activity at North Korean Nuclear Facility Could Mean Another Test Imminent

Activity at North Korea's Punggye-ri Nuclear Test facility indicates that the country could conduct another nuclear test at any time, a North Korean watchdog warns.

The website 38 North, which monitors commercial satellite imagery for clues to North Korea's actions, says the continued activity in many areas of the Punggye-ri site shown by images from February 18 indicate that work is underway at many of the site's tunnels.

"In particular, the shifting of supplies and equipment, as well as additional changes in the texture and pattern of small sections of the tailings pile at the North Portal, indicate continuing work inside the test tunnels," 38 North said.