Saturday’s derby between Piast Gliwice and Gornik Zabrze was called off due of fan trouble.
About 20 minutes before the end of the match, Gornik Zabrze fans started setting fire to home supporters’ flags that had previously been stolen. And Piast Gliwice fans didn’t take that well.
The home side’s fans broke down a security fence and then some of them ran towards the away end, forcing stewards and riot police to intervene.
After a 40-minute delay, the referee decided to abandon the match.
Seven fans were arrested, according to local media.