Disturbances broke out for a sixth successive night in an immigrant quarter of Amsterdam when four cars were set on fire, police said.
The unrest started after police shot dead a man of Moroccan origin last weekend who had stabbed and injured two officers.
The fires brought the total number of burnt cars to 11, a police spokesman said.
The 22-year-old Moroccan had been undergoing treatment for psychiatric problems and had in the past been questioned over contacts with Islamic militants linked to the murderer of Dutch filmmaker Theo van Gogh.
Klein Verzet has much more information on the disturbances: Suicide attack in Amsterdam.