France is in the grip of unprecedented riots which were ticked off six days ago following the fatal shooting of a teenager by the police. For days, rioters have ransacked malls, showrooms and set ablaze public property in various cities including Paris, Lyon, Marseille and more. Amid this, a video of football fans patrolling the streets of Lyon has now gone viral. The group of men can be heard singing the French national anthem as they pass from street-to-street looking for rioters.