U.S: Institute for Science and International Security (ISIS), a U.S. institute tracking Iran’s nuclear programme, has claimed that satellite imagery shows modification at Iran’s possible nuclear site.
The institute claims that four commercial satellite images from August 13, 2013 show asphalting at the Parchin Military Complex. The U.N.”s International Atomic Energy Agency has said that the Parchin Military Complex could be a possible location for testing conventional explosive triggers for a nuclear blast. Iran has said the asphalting is part of regular maintenance and road work.
Source: isis-online.org