Wydad Casablanca fans clashed with cops during their side's Morocco Cup match against RSB Berkane at the Prince Moulay Abdellah Stadium in Rabat on Tuesday.
Holstein Kiel hooligans stormed the pitch in an attempt to attack their St. Pauli rivals in 2. Bundesliga match on Tuesday.
Varese and Como fans clashed in the stands during an Italian Serie D game on Sunday.
Sporting Gijon fans clashed with police outside El Molinon Stadium before yesterday's derby match against Real Oviedo.
The second half of Sunday's Allsvenskan match between AIK and Djurgardens IF at the Friends Arena in Stockholm was delayed by fan trouble.
Hebar Pazardzhik and Minyor Pernik fans fought on the terraces during their third division match on Saturday, halting play for 10 minutes.
A German Cup first round game between Hansa Rostock and Hertha Berlin on Monday night was halted twice due to fan trouble.
Blau-Weiss Linz and Ried fans briefly clashed in the stands at the end of their Erste Liga match on Friday.
Aberdeen fans clashed with stewards and riot cops after the Scottish club's 2-0 defeat at Apollon Limassol in Larnaca last night.
Zbrojovka Brno and Baník Ostrava fans briefly clashed in the stands at half-time during a Czech First League game on Friday.
Brescia and Cagliari fans clashed with one another ahead of a pre-season friendly match yesterday.
Zamalek fans caused a riot at the Borg el-Arab Stadium on Sunday night after their team were knocked out of the African Champions League.