New photo shows work at N. Korea nuclear test site
None
New satellite imagery appears to show a train of mining carts and other preparations under way at North Korea's nuclear test site but no indication of when a detonation might take place.
Early this month, South Korean intelligence reported digging of a new tunnel at the Punggye-ri site, which it took as a sign that North Korea was covertly preparing for a third nuclear test. (AP)
