Extra police have been sent to the French cities of Marseille and Lyon as fears grow of a fifth night of riots following the police shooting of a teenager.

The funeral of the 17-year-old boy was held in the Paris suburb of Nanterre on Saturday.

There were reports of large crowds at the funeral, but the family asked the media to stay away.

French President Emmanuel Macron has cancelled his scheduled visit to Germany as a result of the unrest.

Overnight, 1,300 people were arrested across France in a fourth night of rioting which saw widespread vandalism and looting.