Cylindrical craft sighted in London.I was going towards Notting Hill coming from Willesden Green in a Bus, the 52 route.There was a bit of trafic so the bus would stop for a minute at least. I was looking to the sky, it was mostly clear, some sparse clouds. I noticed this "star" that was quite bright I was looking at it for a moment and at that moment I had the impression it moved but since the Bus moved (it was a double decker bus I was sitting on the top floor by the window), I thought that was the bus moving, so I took my eyes of for a while. The bus then stops once again and I was getting quite irritated because I was going to Victoria Station to pick up my mother who were coming from the airport via train and I was a bit late. I wanted to be there before 21:30, so in my irritation I looked up (my eyes were turned to the window of the bus) while the bus was stopped and I actually see the start moving in a random fashion and it moves towards this cloud. As I look at it a bit amazed my outmost amazement only came when I notice this cigar shaped object near a cloud. At first I didn't want to believe what I was seeing, so I thought it was maybe a zeppelin, but then the shape was too slim to be one. The bus moved a few feet but I could still see it.The bus stooped again for a while and still in disbelief I look at it and I notice this strange myst around it, with some sort of faint glow and furthermore I could see the craft slowly disappearing in front of my eyes. I wanted to tell people in the bus "Look!!!!", but then to tell them to look at what??? A UFO??? People would have took me for a kook. Its shape cylindrical and quite dark. I could see a slight seam running through the middle of it. It had two blinking lights, one red and one blue at each end. In my judgement it was a fairly big craft for the height of the clouds, maybe 30m-50m (I am European living in London). It is my second sighting of strange craft in the sky. My first one was not so amazing, it was a lopsided triangular dark craft with four static lights(red in the middle, blue, yellow, white) when I was young (about twelve). I havn't paid anymore attention to the subject since then. Now if the these craft don't belong to any government in this planet to whom do they belong? I have reported this before but I never seen it anywhere not even on the site I have reported it too.((NUFORC Note: Date is approximate. PD))