Luminous triangle seen in Maisons-Alfort

Summary

On April 22, 2015, around 1:20 AM, two people in Maisons-Alfort observed an object with a triangular or round shape that quickly crossed the sky. The object had three white lights and a green light at its center, and it made no noise or visible trail. According to the only available testimony, the object was moving along a descending path. The observation lasted less than three seconds and was made through a window. Because the witness was a minor, GEIPAN could not obtain the necessary permission to investigate the case on-site. Without direct verification, hypotheses such as drones or reflections from interior lights could not be confirmed. The case was ultimately classified as C due to the lack of reliable information.