30, 1974, dozens of crewmen aboard the U.S. Navy destroyer Blackburn (DD-756)
in the Indian Ocean observed three round, luminescent objects flying in orbit
above the ship, as if spying on it. The objects were tracked by the destroyer's radar.
Although reports differ, the captain apparently sounded General Quarters and prepared for possible hostile
action. Then, 17 minutes after the round objects had first appeared, all three dived into the ocean and vanished in
a geyser of spray. Their movements were detected on sonar
after they submerged.
Ideals UFO Magazine #2, June 1978 “Mystery Objects Sighted Beneath The Seas
by F.B. Newman, p. 54
UFOCAT PRN - NONE
PRN – NONE
On Google search for USN DD-756 the name that came up was the Beatty not
Blackburn and was decommissioned 14 July 1972– CF
Indian Ocean – No specific location