Romanian and Bosnian fans clashed in the stands during their Nations League match at the Giulesti Stadium in Bucharest on Monday.
Flota Swinoujscie and Gwardia Koszalin fans clashed during their Polish fifth division match on Sunday.
Borussia Dortmund and Copenhagen fans were seen throwing flares at each other before the start of their Champions League match at the Westfalen Stadium on Tuesday.
Ruch Chorzow fans clashed with stadium security during their Polish Cup tie against rivals Gornik Zabrze on Thursday.
AIK and Hammarby fans clashed in the stands at Stockholm’s Friends Arena after their Allsvenskan match on Sunday.
Young Boys fans came under attack from Anderlecht hooligans in the Belgium capital ahead of their Europa Conference League tie on Thursday.
Fans of Twente and Fiorentina clashed in the centre of the Dutch city of Enschede on Wednesday.
Young Boys hooligans attacked Anderlecht fans at a bar in Bern ahead of Thursday’s Europa Conference League tie.
Brondby and Pogon Szczecin fans clashed outside the Brondby Stadium after their Europa Conference League tie on Thursday night.
Santos fans invaded the pitch and tried to confront Corinthians players following their Brazilian Cup last-16 tie on Wednesday.
Cruzeiro and Fluminense fans clashed in the stands at the Mineirao stadium ahead of their Brazilian Cup tie on Tuesday.
Furious Saint-Etienne fans stormed the pitch after the team was relegated from France’s top flight following a play-off defeat to Auxerre on Sunday.
