The first important case was a multiple-witness observation of a strange aircraft, reported by gendarmes on patrol near the town of Eupen, not far from the German border. Auguste Meessen, professor of physics at the Catholic University in Louvain and a scientific consultant of SOBEPS, summarized the case:  “On November 29, 1989, a large craft with triangular shape flew over the town of Eupen. The gendarmes von Montigny and Nicol found it near the road linking Aix-la-Chapelle and Eupen. It was stationary in the air, above a field which it illuminated with three powerful beams. The beams emanated from large circular surfaces near the triangle’s corners. In the center of the dark and flat understructure there was some kind of ‘red gyrating beacon.’ The object did not make any noise. When it began to move, the gendarmes headed towards a small road in the area over which they expected the object to fly. Instead, it made a half-turn and continued slowly in the direction of Eupen, following the road at low altitude. It was seen by different witnesses as it flew above houses and near City Hall.” Sightings continued to be logged by SOBEPS and the Gendarmerie during the fall and winter of 1989-1990. Most witnesses described seeing dark, triangular objects with white lights at the corners and a red flashing light in the middle. Many of the objects were said to have hovered, with some of them then suddenly accelerating to a very high speed. Most of the objects made no sound, but some were said to have emitted a faint humming like an electric motor.