According to civilian satellite imagery it appears that the Kim regime is preparing the Pungye Nuclear Test Site for future nuclear tests:
North Korea’s Punggye-ri site in Kilju County, North Hamgyong Province, is active and could be ready for new nuclear tests, according to 38 North, as Pyongyang continues to ignore United Nations resolutions and threaten further nuclear and ballistic missile tests.
The website 38 North, which specializes in North Korean affairs and is run by the U.S.-Korea Institute at Johns Hopkins University’s School of Advanced International Studies (SAIS), said Friday that satellite imagery from March 6 and March 14 show active maintenance at the Punggye-ri nuclear test site.
The activity “does not appear directed at further tunnel excavation,” it said, but rather to maintain existing tunnels as well as to clean up after the nuclear test in January.
“It is highly likely that site is capable of supporting additional tests at any time,” the website continued. [Joong Ang Ilbo]
You can read the rest at the link, but just because they are cleaning up the test site I would think does not necessarily mean there will be a test in the near term. However, I do have to wonder who in North Korea cleans up these test sites? Do they send some of their political prisoners into the tunnels to do the work?