UFO'S IN ENFIELD,MIDDLESEX

We saw 3 sets of 3 lights in the west while travelling in a southerly direction. There was no road illumination around us. I was driving the 3 of us home from work, 1 of my friends said to look at the 3 aeroplanes over to the right, He thought that there were 3 aircraft flying away from us.My supervisor who was sitting next to me watched for a while and I glanced over,he suddenly told me to stop. I pulled over as soon as I could and we all got out. It was pitch black,no other light at all, I turned off the car lights. My supervisor realised that the lights were not getting any futher away and told me to stop.The 3 of us watched the 3 sets of lights for a while wondering what they were. They seemed to be moving about slightly but the 3 lights of each group stayed in perfect syncronization as if they were 3 separate craft just hovering. We estimated them to be about 1/4 mile away.