This all agrees with what I said. The Jihadists may not be on the front lines, but they are most likely instigating these yoots of "North African/Muslim origins". BTW, the "lesser extent" as used in the article as a discription of the Jihadists are Reuter's words and not a direct quote from the police. As such they're -- worthless.
Plus de l'article;
If the police were not chasing the youths then the riots are not a spontanoeus reaction to a real incident. They are instead, instigated...most likely by Jihadists who don't like the political direction the French government has taken in the WOT over the last few weeks.