Doesn't surprise me in the slightest.

I went to the Euros in Paris a few years back, and a bunch of fans from different countries were gathered in the dedicated fanzone having a singalong. Genuinely having a great time. Probably around 150 of us. English, Portuguese, Polish, German etc. all getting along.

The French police didn't like that for whatever reason. Out came the riot vans, batons and riot shields. They surrounded us in a circle, forcibly removed us from the fan zone, and literally shoved us down the metro - as in, folks were being pushed down flights of stairs. Plenty of injuries and blood.

Still not entirely sure what we'd even done. The police just seemed desperate for fight.