UPI:

North Korea has begun repairing a second tunnel at its Punggye-ri nuclear test facility, according to a U.S. think tank, while earlier restoration work appears ready for the secretive regime to conduct an underground nuclear detonation.

The Center for Strategic and International Studies said in a report Wednesday that refurbishment work has stopped at the site’s Tunnel No. 3, indicating that preparations are “apparently now complete and ready for an oft-speculated seventh nuclear test…”

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