A group of giant drones has been spotted in the Eastern Colorado sky at night. They have been spotted mapping out the area in the six counties over Colorado and Nebraska. The US Army and Air Force have already cleared that drones did not belong to them. Although the drones were not found to be suspicious. There is a probability that drones might belong to a local firm that often tests new technologies at night. The local administrators have urged people not to shoot down the drones, as they might be highly inflammable.