Disc shaped or upside down hat shaped craft with lights around it.

I was a small child when it happened. I was three years old. Me, my mother and my grandfather were driving home from the cemetery that evening. I was lying in the back seat of the car. Suddenly the car stopped, and my mother quickly pulled me out, saying "Look, look what I'm going to show you". I remember noticing a line of cars parked on the side of the road. People were on the way out, they were observing something. I saw the flashing red rear lights of the cars. But it wasn't that. My mother pointed to the horizon, and there was a bright red object near the forest, later the red color faded, and I clearly saw a disc-shaped vehicle with lights flashing around it, soon the aircraft flew to the forest. The next day my mother's friend called her to tell her that she and others saw a disc-shaped aircraft over the Nuklon factory.
After almost 20 years of the event, I decided to check if it really happened. Since I remember seeing a lot of people watching the event, I thought it must have been reported in some kind of newspaper article. I went to the local library archives and searched for an article about UFOs in the period between 1989-1991. The article was found. After this, I lost interest in this event and made a pause for an almost the next 12 years. On 18 July 2023, I got the idea to write a post in the Facebook group of the town where the sighting was. In the post, I asked people to respond to who had seen this sighting. I attached PDF with newspaper article, Witness statements, and sketches.