Any Knowledge of UFOs over Chernobyl?

"...about one month before the Chernobyl disaster I had a talk with an air traffic controller of the Kharkov airport. He told me that, according to pilots' reports, there was a rising number of UFO observations in the area of the Chernobyl Nuclear Power Station (ChNPS). Later it became known that on the night of the fire in the ChNPS, some 3 hours after the explosion, a team of nuclear specialists saw in the sky over the station a fiery ball of the color of brass. The witnesses estimated its diameter as 6-8 meters and its distance from the burning nuclear reactor No. 4 as some 300 meters. Just before the observation these specialists measured the level of radiation in the place where they were standing. It was measured at 3000 milliroentgens per hour. 'Suddenly two bright rays of crimson color extended from the ball to the reactor... This lasted for some 3 minutes... The rays abruptly faded and the ball slowly floated away in a north-westerly direction, towards Byelorussia. Then we again looked at our radiation monitor. It displayed only 800 milliroentgens per hour...'"