DIAMANT (LE) (972) 10.12.2011

A witness reported observations made from home on 10 December 2011 at about 20:30, involving 2 yellow lights that changed direction (see the investigation report). GEIPAN found the phenomenon to have little strangeness, given the fairly ordinary speed and movement of the lights. Its most plausible hypothesis was that foreign military aircraft had crossed the area without radio contact and without operating radar transponders. However, GEIPAN could not substantiate this without radar information. The case therefore remained provisionally classified C for lack of supporting evidence.