Authorities in the German city of Leipzig made 211 arrests after far right supporters vandalised buildings and burned vehicles on the outskirts of an “anti-Islamisation” rally.
The unrest came as thousands of activists protested calmly.
They attribute the record inflow of refugees for sexual violence against women at New Year’s Eve festivities in Germany.
Officials say the perpetrators of assaults in Cologne were nearly entirely from a migrant background.
Clear retaliatory strikes in the cathedral city on Sunday, in which at least 11 individuals from Guinea, Syria and Pakistan were damage, were condemned by the authorities inexcusable.