Real Sociedad and Roma fans clashed near the Anoeta Stadium in San Sebastian before their Europa League match on Thursday.
Eintracht Frankfurt and Rangers fans clashed in Seville ahead of the Europa League final at the Ramon Sanchez Pizjuan Stadium on Wednesday.
West Ham and Eintracht Frankfurt fans clashed on the streets of Seville on Wednesday night, in between the two clubs’ Europa League ties.
Dinamo Zagreb fans clashed with Spanish police at the Ramon Sanchez-Pizjuan Stadium during their Europa League tie against Sevilla on Thursday.
Legia Warsaw fans clashed with police at the King Power Stadium during their Europa League match against Leicester on Thursday night.
Sturm Graz hooligans attacked a pub where PSV fans were drinking ahead of the teams’ Europa League clash.
A group of Dinamo Zagreb hooligans attacked West Ham fans in a pub in the Croatian capital on Friday.
Fans of Leicester City and Napoli clashed in the stands at the King Power Stadium after the final whistle of their Europa League match on Thursday.
Galatasaray fans attacked a man who had been goading them prior to their Europa League tie against Danish club Randers on Thursday.
On this day in 2010, Athletic Bilbao and Anderlecht fans clashed on the pitch at the old San Mames Stadium after a 1-1 draw in the first leg of their Europa League last-32 tie.
On this day in 2012, a riot broke out in the Toumba Stadium before a Europa League match between PAOK and Rapid Vienna.
Wolverhampton Wanderers fans were attacked by a group of Standard Liege hooligans in the Portuguese city of Porto on Tuesday night.