4 events
Hundreds of witnesses across Belgium, including dozens of national and federal police officers, report large, silent, triangular craft moving at low altitude over the country. The Belgian Air Force scrambles F-16s on 30–31 March 1990 and obtains a brief radar lock that is later attributed to anomalous propagation.
Three Texas residents report a close-range encounter with a diamond-shaped object emitting intense heat, escorted overhead by approximately twenty-three twin-rotor military helicopters. All three subsequently report serious medical injuries.
A New Hampshire teenager and two Exeter, New Hampshire, police officers report a large, silent, brightly lit object hovering at low altitude over a residential field. The Air Force initially attributes the sighting to a high-altitude refueling mission, then revises the case to 'unidentified.'
Eleven members of an extended family in rural Kentucky report being besieged through the night by small, silver-coated humanoid figures. The Hopkinsville Police, Kentucky State Police, and U.S. Air Force investigate.