Meanwhile, the launch of the U’nha-3 and Kwangmyo’ngso’ng-3 satellite may not be the only test carried out by the Korean Workers’ Party (KWP) Central Committee’s Machine-Building Industry Department and its subordinate organizations, the Second Economy Commission and Second Natural Sciences Academy. South Korean officials say that ongoing excavation and construction activities near P’unggye-ri, Kilchu County, North Hamgyo’ng Province suggest the DPRK may conduct a third underground nuclear detonation, likely HEU. Yonhap reports
http://nkleadershipwatch.wordpress.com/2012/04/08/rocket-on-launch-pad/