Sighting in Bully-les-Mines, December 31, 2014

Around 7:30 p.m., a witness noticed two bright white lights in the sky, spaced an equal distance apart. They stayed motionless and made no sound. After a few minutes they moved slowly, still silently, over the rooftops of the houses and passed out of the witness's sight. This was the only account collected.

The investigation compared the sighting to Thai lanterns, probably released nearby at the end of a private party: glowing balls crossing the sky within a few minutes on a New Year's Eve night fit that idea. The slight drift toward the west could be consistent with the weak, unstable wind, temporarily from the southwest, recorded in Lille by Météociel. However, the directions of movement the witness gave were not well consistent from one part of the account to another. In addition, the witness described white lights, whereas Thai lanterns are most often described as yellow-orange, and the wind remained uncertain.

The lantern hypothesis, although probable, therefore could not be confirmed. GEIPAN classified the case as C because of the lack of precise information on the wind, pending other accounts related to this one.