As reported
Other over Nis (Serbia) · Serbia
A witness account on file, unevaluated. Most of the archive rests here, and honestly so.
The report, as filed
It had (I saw) 4 lights two yellow ones (normal) and two blue ones - half sphere like shape, dark and unilluminated.
Held as-reported from National UFO Reporting Center. Witness text is preserved verbatim, including its spelling; nothing is edited beyond formatting.