I am in Mons, not too far from Brussels, and I have not heard about this at all.
Here is the link to the original story:
https://rairfoundation.com/war-in-belgium-coronavirus-curfew-arrest-leads-to-massive-blm-and-islamic-riots-videos/?utm_source=wnd&utm_medium=wnd&utm_campaign=syndicated
Stay safe FRiend.
Sure looks like a riot to me.