The protest Friday night in the Paris suburb of Trappes was sparked by the arrest of a man who allegedly attacked police after they stopped his wife for wearing a full-face veil, which is illegal in France, France24 reported.
Police fired tear gas at protesters and finally dispersed the crowd at about 3 a.m.
Six protesters were arrested and four police officers were injured.
The Collective Against Islamophobia in France published a statement on its website Saturday calling the actions of the police a sign of the "racism and Islamophobia" that are now "clearly institutionalized and legitimized" in France.
Marine Le Pen, the leader of France's far-right National Front party, blamed the violence Friday on "the rise of a harmful communitarianism exacerbated by mass immigration" in France.