Star Starachowice and KSZO Ostrowiec fans clashed during their Polish III Liga match on Saturday.
The violence broke out at half-time as fans from both sides got out of the stands and into the area separating them, leading to a fight.
The two groups exchanged punches and kicks before police intervened to separate them.
Fans of Widzew Lodz were also seen fighting alongside Star Starachowice fans.
According to local media reports, four people were arrested.
