Unidentified aerial sighting in Curitiba

Summary

This confidential document records a sighting of an unidentified aerial object that occurred in the city of Curitiba. The report, dated March 31, 1997, describes an aerial phenomenon observed at night under clear weather conditions and good visibility. The witness, an ordinary citizen without technical training in the subject, reported the presence of a round-shaped object moving at high speed and without emitting any sound. The document does not include physical evidence or audiovisual records, but it does detail the exact location of the sighting and the object's behavior.

The form used for this report is part of the protocol of the Brazilian Ministry of Aeronautics for documenting unexplained aerial phenomena. The observer was not affiliated with any organization dedicated to the study of UFOs, and the case was reported to a local military unit. Despite the lack of concrete evidence, the report highlights the importance of documenting such events for further analysis. The document concludes without a clear explanation of the observed phenomenon.