group of red and white flashing lights moving slowly through the sky for a period of at least 5 minutes.White and Red flashing lights. Large group of them, very high up in the sky, almost directly above. very slow moving, very distinct. Grouped very closely together. I didn't see the beginning but at the end the lights disappeared gradually over the period of about 1 minute. I viewed this from the roof of my apartment and I am very familiar with the lay out of the area and the hills - including the radio transmission beacons which were also visable on the hill around 45 degrees below and 10 degrees left of the grouping.