Jets sound came first, looked up and around because it was quite a large sound. Sound appeared to die away for a couple of seconds and then the sky erupted with an instantaneuosly much larger sound of jets. At this point now I know exactly where to look automatically and saw what appeared to be a large object dark coloured, flat bottom, dome top appeared to have some structure to it but was partly obscured by a number of jets escourting the object at what I presume to be stalling speed because the jets where blowing a bit of carbon cloud from their engines. I chuckled to myself that this is something similar to a youtube video someone in the United States had submitted some while back. I told my good frind whm I think didnt really believe me and kept silent. Did I see this?? Did anyone else report this? Hope so but it may turn out to be something military. Sound for a second orso then I saw this for around 2-3 seconds as I stopped to look up and was framed 3/4 by buildings and a wall. They where quite low and appeared to be heading from my south towards a Noth Easterly direction.