At 12 40am i went out to my balcony to have a final cigarette before bed.It was a clear cloudless night and as i looked at the sky i noticed what i initially thought was a plane.I realised that it was moving but hovering in the same place.It was then that i also realized there was no sound whatsoever coming from it.This made me look at it more closely as i wasn't sure what this was.This is when i could see that it actually consisted of four lights forming the shape of a diamond.The top light and one diagonally beneath it were white and the other light diagonally beneath and the bottom light were both red.I knew this wasn't a plane or a helicopter because of the unusual formation of the lights and lack of sound.I watched as the cluster of lights,which were slowly flashing,slowly and silently began to move in a straight line in a northerly direction.As my balcony faces south,it slowly moved out of my line of vision.As i looked back to where i had originally spotted it hovering in the sky i was amazed to see yet another set of four lights hovering in the exact spot i had just seen the previous lights hovering.Again it was four lights forming the shape of a diamond but this time all four lights were red but weren't flashing.I was stunned to then see another set of four lights appear from what looked like roughly 50feet away from the red hovering lights.This third set of lights were exactly the same as the first set of lights which had now left my line of vision-diamond formation with two white and two red and flashing slowly.This formation seemed to appear out of thin air as i never seen it when i had noticed the four red hovering lights.This new set of lights i had noticed were moving in the same slow manner as the lights i saw at the start and began moving in the same northerly direction.As it moved the red lights which were hovering began to slowly move as if they were folloing the lights close by.As it began to follow,two of the red lights changed to white so that it now had the same appearance ss the other two objects or crafts or whatever these things were.At this point my heart rate was increasing as i knew i was witnessing something highly unusual.I ran into my bedroom to get my girlfriend ,who had just gone to bed,to come to the balcony and see what i was witnessing.I half expected them to have gone when we came back out but they were both there and still moving very slowly.We both watched as the set of lights which seemed to be getting followed changed direction from north to south almost as though it was circling behind the other set of lights behind it.We watched as it slowly circled round and i'm unsure whether it was because it was now facing us at a different angle but it's four lights were now white and suddenly two of the lights became very bright almost like the searchlight of a helicopter.It wasn't a helicopter though as these two bright lights didn't give off any sort of beam the way a helicopter searchlight would.This was all done in complete silence.They then seemed to be carrying on with the northerly direction of the first set of lights i had saw and as they did so they seemed to fade in front of our eyes until they simply looked lime a single point of white light.As we watched this,i saw what i can only describe as a white flash or flare come flying down towards the trees just along from our house.It came in at a 45degree angle and had a white trail of light behind it.As it got close enough to the tree where it looked like it might hit the tree it completely vanished.It also made no sound whatsoever.At this point my excitement turned slighty to anxiety as i was witnessing not only what appeared to be three ufo's but now it seemed that they were firing something from their craft.I don't know if it was some sorg of flare,laser or something else but i'm certain it came from the original set of lights i saw that had disappeared from view.This was one of the most exciting and scary things i have seen and leaves me in no doubt that we are definitely not alone.