This file photo taken on April 8, 2012 shows two North Korean soldiers standing guard in front of the Unha-3 rocket at at the Sohae Satellite Launch Station in Tongchang-Ri. Activity has been detected at a North Korean long-range rocket site suggesting Pyongyang may be pursuing the "rapid rebuilding" of a test facility after the collapse of the Hanoi summit, according to analysis of satellite imagery from a US think tank on March 6, 2019. (Photo by Pedro UGARTE / AFP)
SEOUL: Activity has been detected at a North Korean long-range rocket site, suggesting Pyongyang may be pursuing the "rapid rebuilding" of the facility after the collapse of the Hanoi summit, according to analysis of satellite imagery.