Mysterious object over a bridge in Paris

Summary

On September 30, 1978, two people walking in Paris noticed a flying object passing very low. The object was round, with a bright compartment and red and yellow lights. The most intriguing detail was that it made no noise while moving above a railway bridge. Despite the uniqueness of the observation, no other witnesses were found to confirm the event, making it difficult to analyze further. This case, classified as "C" by the GEIPAN, remains an unsolved mystery.