Ufo spotted by pilot in Holland

1997 a Piper Archer pilot witnessed a phenomena he had never seen before and he couldn't explain. This thrilling recording of his communication with the control tower is the physical evidence of that event, supplied with subtitles and photos of the area and plane. Other circumstancial evidence is provided by the military that cleared the air in that region and afterwards had no explanation for what happened. In that same region of Groningen, Holland a lot of UFO's are spotted today in 2007. In fact, there is a wave of ufo's spottted in Northern Europe.