RFC Seraing and RWD Molenbeek fans clashed on the pitch at the Pairay stadium after the second leg of their Belgian first division promotion/relegation play-off final on Saturday.
Beerschot fans invaded the pitch at the Olympic Stadium after their side’s 1-0 defeat to Antwerp on Sunday.
Standard Liege’s Belgian Pro League match against Charleroi was abandoned on Sunday after flares were thrown and fans invaded the pitch.
Standard Liege’s clash against rivals Anderlecht was abandoned on Friday night because of flares thrown by away fans.
RAAL La Louvière fans attacked Francs Borains supporters following Saturday’s defeat in the Belgian Third Amateur Division.
Angry Antwerp fans staged riots after their football team missed the league title in the second division.