38 North: Increased activity at North Korea's nuke test siteUpdated: 2014-05-01 21:57:24 (KST)
U.S. researchers say North Korea's nuclear test doesn't seem imminent at this point, that is IF the regime is sticking to its previous test practices.
Satellite imagery posted on 38 North, a website run by the U.S.-Korea Institute at Johns Hopkins University, shows vehicles and equipment are still outside a tunnel entrance at the Punggye-ri site.
In the past, all equipment, vehicles and personnel were withdrawn in the days before a test.
However, the website added there is no knowing whether North Korea is changing its procedures.
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