A fifth day of demonstrations over police use of excessive force with minorities was set for New York on Sunday after 13 arrests in a night of violent protests in Berkeley, California, where stores were looted and tear gas fired, and in Seattle.

Clashes on the West Coast contrasted with relatively calm demonstrations on a rain-soaked Saturday in New York, after mourners held a funeral for an unarmed black man shot dead by a white police officer in the stairwell of a Brooklyn apartment house.

Sunday was expected to see protests again in New York as well as Chicago, Philadelphia, Miami and Minneapolis and dozens of other cities.