As reported
Circle over Mexicali (Baja California) (Mexico)
A witness account on file, unevaluated. Most of the archive rests here, and honestly so.
The report, as filed
flying multicolor rotating circle very fast and akward movements once entering U.S. airspace.
Held as-reported from National UFO Reporting Center. Witness text is preserved verbatim, including its spelling; nothing is edited beyond formatting.