This story is interesting. It mirrors the riots in England in some ways. I found it on islamversuseurope.blogspot.com and titled the video into English. IVE claims it was Muslims and makes the observation that in very short order, they were able to organize a riot and get T shirts made etc.
No argument there, clearly they did, and of 150 people or so. But the video, which is clearly sanitized as all hell, does not say who the people are who did the rioting, although the classic European MO of the Muslim is beating up on cars and the uninvolved and defenseless. So that makes a good case for it.
If anyone can find any other stories from the MSM to corroborate IVE‘s version of events I would appreciate seeing them in the comments.