NBC:
Satellite photos indicate North Korea is building a ballistic missile submarine and may be making preparations to test a submarine-launched missile, according to an analysis of the commercial images by experts at a Washington-based think tank.
The photos of Sinpo South Shipyard taken Monday appear to confirm reports by North Korean state media of a “newly built submarine” inspected by the country’s leader, Kim Jong Un, in July, according to Joseph Bermudez and Victor Cha of Beyond Parallel, a research project funded by the Center for Strategic and International Studies (CSIS).