On 29 August 1967, François Delpeuch and his younger sister Anne-Marie reported four small dark figures near a bright spherical object near Cussac. GEPAN investigated.

Cussac matters because it is a French close-encounter case with a GEPAN investigation — yet the reported figures remain unverified.
Documented
Two children reported four small dark figures near a bright spherical object
Documented
GEPAN investigated the case (1978)
Debated
The identity of the object
Debated
Whether the reported figures were real or a misperception
Unverified
The figures as established entities
Unverified
Extraterrestrial origin
Sources are kept in separate layers: official and contemporary material is documented; secondary UFO literature is treated as debated, not as primary evidence.
Documented source.
Secondary / debated material.