In fact for the past few nights, there have been so many muslim riots that in German news it actually made a headline when there were no riots last night.
I have not been able to find any English news on this, nor has one of our German colleagues but I do have a German video Don Laird sent. While its mostly chaos and German you can hear one Allahu Ackbar at 26 seconds before they cut away, presumably to cover up the following war-chants by the crowd.
As the day goes by I hope to get translations as well as this video redone in English, as the muslim who speaks to the camera is actually quite high ranking muslim. Something like a Colonel maybe, as giving them a name like imam is pretty much meaningless.
[*** UPDATE *** ] For one reason or another, YT has seen fit to remove this video. Here it is however.