North Korea which is accusing Washington of not implementing pledges made at a June summit of their leaders. The researchers, who work for the Washington-based 38 North think tank, released on Friday satellite photos allegedly indicating continued activity at North Korea’s Yongbyon Nuclear Scientific Research Center.
The photos, they said, also showed an ongoing dredging of a river near a pump house, which draws cooling water for the site’s reactor.
The group said the photos, taken on September 24, showed minimal movements of vehicles and equipment in the area, but the purpose of their activity was unknown.
The researchers, however, said they believed the reactor at Yongbyon was not operating as there was no steam coming from the generator hall.