4 angular brown objects moving in straight path, each with smaller areas that constantly changedAt 7:30 I was standing on the pavement in South London with two others. Something caught my friends eye and for the next few minutes our attention was drawn to an increasing number of brown specks in the sky. There were four in total, emerging one by one on the horizon in front of us. They all moved in a straight path towards the opposite horizon, so we had a significant amount of time to observe them. They had an irregular, angular shape though the specifics are vague because they were so far away. Although they all seemed predominantly brown, there were areas within each aircraft which were of a different colour. These smaller specks seemed to change appearance as the aircraft moved, as if there was something glowing or 'bulging' beneath each one. Their colour would shift through different shades of brown and even to black at times, while the basic angular shell of each craft remained completely unchanged. The craft made no sound. At one point, a regular aeroplane passe! d by so that we were able to compare the massive difference between it and the unusual objects we were seeing. The final object to pass seemed to get smaller before it passed from our view. All three observers are students, and were relatively clear-headed despite the time of the week.((NUFORC Note: We spoke with this witness, who telephoned from the U.K., and he sounded to be quite serious-minded and credible. We would welcome other reports from anyone who might have been witness to the same event. The sighting occurred at 7:30 a.m., we believe the caller asserted. PD))