Police clashed with masked rioters in Paris, Marseille and other French cities after tens of thousands of people marched across France in a third wave of protests, according to the report. The demonstrations were over the cost of living and deteriorating public services.
The interior ministry said about 320,000 people took part in rallies nationwide, down from an estimated 410,000 the previous weekend. It said 70,000 of them marched in Paris, along boulevards on the south-eastern outskirts, avoiding the city centre.
The report says some demonstrators wore Halloween fancy dress. It also says demonstrations took place in Germany, where officers fired teargas to disperse crowds as evening fell.