The Brussels Region decided to ban all protest marches a couple of days ago. Local municipalities can take their own measures to implement this. Far-right groups had plans to protest at the Beurs area or in Molenbeek, where the atmosphere is tense.
Police were monitoring the situation in Molenbeek from a helicopter. 7 far-right campaigners were arrested, 2 of them were carrying pepper spray. There are various international camera teams and journalists at the municipal square in Molenbeek to follow the situation. Their presence apparently sparked irritation with local residents and there were a couple of incidents.
At the Beurs, police apprehended 33 left-wing anti-racism demonstrators (photos below).