While watching fireworks from my balcony i observed a red light in the southern sky that appeared larger and brighter than usual aircraft lights. it appeared to either be standing still or moving up or down range.It then changed to a green light and back to red again. as i watched it moved in jerky motion to the west and then suddenly downwards at 45 degree angle vanishing behind the building next to mine. it then re-appeared slightly more to the west and higher in the sky changing colors again from red to green, it then simply vanished only to re-appear again as a green light as i watched the one green light became three smaller lights all of which proceeded to alternate simultaneously green to red and back again about three times. these lights all vanished. once again the red light appeared in approximately the same position as i first saw it alternating red to green a few times and then again just vanished. this was the end of the sighting the entire time was about 11 minutes. i was recording the last few minutes of the sighting with my phone but when i viewed the recording after the event had ended all the part with the sighting was missing.