Fran Ridge:

Oct. 7, 1977; Soviet Navy submarine tender, location uncertain

Nine disc-shaped UFOs circled a Soviet Navy submarine tender on this day. The radio, electronics, and on-board communications were all disrupted. (Source: Jacques Vallee, UFO Chronicles of the Soviet Union: A cosmic Samizdat, p. 29). [A submarine tender is a type of ship that supplies and supports submarines. Submarines are small compared to most oceangoing vessels, and generally do not carry a full array of maintenance equipment and personnel].