SEOUL, Sept. 25 (UPI) -- North Korea's nuclear test site showed new activity that could mean Pyongyang is preparing for a nuclear test, but Seoul's Unification Ministry said Friday there are no "imminent signs" of testing.
Satellite images from Sept. 18 analyzed on 38 North, a Johns Hopkins University website dedicated to North Korea issues, indicated new movement at the Punggye-ri Nuclear Test Site's West Portal Area, where nuclear tests took place in 2009 and 2013.