Unexplained
Unspecified over Pyungthek · South Korea
Investigated by a competent body and left unresolved. The rarest grade, and never awarded by us — only recorded.
The report, as filed
Pyungthek, Korea. 10:45 p.m. Witnesses: Two Marine Corps Sergeants. One 4 ft. diameter object dove at a runway shooting red flames, hovered briefly over a hill, turned 180 , flashed twice and was gone.
Held as-reported from Project Blue Book, United States Air Force. Witness text is preserved verbatim, including its spelling; nothing is edited beyond formatting.