UFO Video - Triangular shaped UFO with orange lights seen in Larissa, Greece 2011

I was driving my car returning home with my wife at 10:45 pm. Suddenly i noticed a triangle with curved lines orange-red light, over the buildings.

I stoped my car and i record for about 30 sec with my cell phone. It looks like fire but with no flash It was moving with one side front and the top of the corner leading. No sound.

Flew straight line over the buildings and finally dissapear near to the horizon in the clouds. My first thought was that looks like the fire of a little hot air ballo