The article below was published in the daily newspaper Today, London, U-K., on June 25, 1990.
They saw it change colour and plummet to the ground after their rockets slammed home.
Two peasants who found a piece of wreckage died soon afterwards. The rest of the craft is being kept hidden by the KGB.
The amazing claims were made yesterday by Soviet scientists attending a conference on UFOs in West Germany.
Dr. Marina Popovich, a former Russian air force colonel, said: "I believe the military are holding on to something which originated outside our planet."
The delegation said the UFO was shot down in 1983 by a pair of MIG fighters.
Two peasants who found a piece nearly 20-feet square later died, apparently from the effects of radiation.
Dr. Valery Uvarov said: "We have seen the pilot's report. It says the UFO did not explode but turned a bright colour and then fell to earth."
A leading German scientist said: "I am usually very sceptical about most UFO stories, but this one cannot be treated lightly."