An abduction of a witness was reported. Physiological effects were reported. Telepathic phenomena were said to have occurred. One disc was observed in foggy weather by one male 47-year-old witness on a bridge for over four minutes (Urruti).

A truck driver, Nestor Urruti, 47, was driving over a bridge in Olavarria in a thick fog when he saw something "like a gigantic oyster" emitting a blinding light. It opened up, and he found himself and his truck inside, in darkness. As his eyes adjusted, he could see a luminous horseshoe-shaped instrument panel 9-12 ft long, with dials and luminous figures. He felt a cask with several cables on it being put on his head, and heard "many things that I don't want to relate, because I don't want anything to happen to my wife and children." He finally arrived at his trucking agency "with a strong attack of nerves." Afterward he suffered strange sensations between 0300A and 0315A, feeling as he was someone else and waking with sharp pains in his waist and neck; he was given psychiatric treatment at the Olavarria hospital.

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