Two Triangle-like shaped objects with each three red flashing lightsI noticed that two unusual flying objects where flying over our city, both with the same altitude and speed. They both had three very bright, red flashing lights and it seemed to me like they (the UFO's) had a triangle-like shape . At first I thought that these where low flying planes but it couldn't have been possible because I heard no turbine sound. Next, I called my Mother to run out in to the garden otherwise she would not believe what I saw. Suddenly, one of them disappeared, and we couldn't believe our eyes!! Then, after approx. 15 seconds the other object disappeared at the exact same position as the former one.