It's usually the soccer fans who cause main problems during the game - running occasionally on the field adding the job to the security. This time it got inverted - one of the players decided to throw his t-shirt to the fans as a gift - but then was roughly stopped by policemen guarding the stadium. Fans got crazy after that
and started throwing the plastic seats on the field. They say that happened because this team was guest playing and won, but policemen were locals and have got behind their team so decided to revenge to the guests and push them hardly. So even people on duty can get involved into the sport battles.
In Latvia they have a special museum for those who would like to dive into the now not present world of the Soviet exotics. Every visitor has to wear Soviet Russian prisoners cloths and when enters is being humiliated by the staff dressed as
Soviet army soldiers. They yell on and almost beat all the visitors, force them to do things, wear gas masks, run distances and many many more things to do. Hard times he experiences there until this guided tour is ended.