I was waiting on the bus to take me to the ferry. i was looking up at the night sky. i saw ufo tailing the jet plane.When it saw me observing it became stationary, that when i started taking pictures but cellphone malfunctioned. i knew it was a ufo when i first observed it.It was shaped exactly like cell phone about seemingly about 20,000 ft.In the sky. a few seconds later as i saw the bus approaching it moved forward a little as i was getting ready to catch the bus it rapidly went the opposite direction. it was simply amazing.I asked the driver did he see it,he said he wasn't sure. im still astonished and amazed at seeing what i know was a ufo. unfortunately i had to go to my destination. i believe the half red and green lighted craft caused my camera to malfunction.Hopefully someone else witnessed this event.I just could'nt believe, but it really did happen. ive been just wondering why me and why did stop to observe me.Again if i didn't have maybe i could observed its path.