This first startling sighting would evolve into a wave over the next several months. On two occasions, a pair of F-16 fighters chased the mysterious object, but to no avail. On March 30, 1990, a frantic call to military headquarters came from a Belgian national police Captain. He marveled at a giant triangle passing over, and simultaneously two ground radar stations were reporting an object of unknown origin on their screens. One of these bases was NATO controlled near the city of Glons, southeast of Brussels. After contacting other radar facilities, they learned that at least four other stations were also reporting the object on their screens. The object was moving across their screens slowly, and failed to send a transponder signal to identify itself.
Two F-16s were ordered to intercept and identify this phenomena, and one of the jet's radars locked the object in. It appeared as a small diamond on the pilot's screen. The pilot reported that only a few seconds after locking on the target, the object began to pick up speed, quickly moving out of radar range. An hour long chase ensued, during which time the F-16s picked up the strange craft's signal two additional times, only to see it fade from view. The triangular craft seemed to be playing a cat and mouse game, and finally was lost in the night lights of Brussels. The pilots of the fighters reported that the UFO had made maneuvers at speeds beyond the capability of their technology, and once the radar showed the craft almost instantly drop from 10,000 to 500 feet in 5 seconds