huge spheres by residential housing in shrewsbury.walking towards the northern outskirts of shrewsbury, when from the fileds to the left of ellesmere road, two huge very bright spheres shot straight up to an altitude of approx 400ft. they were a brilliant bluish white colour and made no noise at all. they started to move towards the nearby housing estate called herongate slowly when all of a sudden they shot straight upwards really quick and we watched as they disappeared from sight. whilst this was happening we notice two vehicles driving by us that just stopped in the road suddenly and their engines and lights cut out, the street lights also flicked on and off.we all agreed that they were definately not any kind of aircraft we knew of, as two of us are from military backgrounds as ex servicemen.we continued to walk talking about the spheres when approx five minutes later two apaches helicopters appeared and flew low and around the fields next to the road as if searching for something.