"The observation took place on 23rd March at about 22:15/22:20. At that time I went with my girlfriend out of a block. She accompanied me in my way to my car. […] The sky was bright what is an unusual thing over Zaglebie [i.e. Upper Silesia] and suddenly I saw two [or several] objects moving from North to South, from Ursa Mayor and that thing amazed me because I should hear sounds of working engines. The objects were traveling at a high attitude. UFOs were red in color and barely visible.

After a while also my girlfriend noticed them. The observation lasted only 30 seconds. I add also that there were 2 objects or 6 balls traveling in a proper manner. I would like to stress a fact that the balls weren't lighting with identical, red light and weren't twinkling as it can be seen when one observes a plane at night. Moreover the plane could be heard but those objects were moving soundlessly."

source and references:

Source: NPN - www.npn.ehost.pl, 31/03/06 by: Piotr Cielebias: NOL - Polish UFO Journal, 01/04/06 [http://nol-polishufojournal.blogspot.com]