Twelve people have been killed and 80 wounded in protests in north Afghanistan against the killing of two men and two women in a night-time raid by foreign troops.
An estimated 2000 demonstrators took to the streets of Taloqan, a town in Takhar province, and tried to storm a German military base.
Police and say the four people killed in the raid a day ago were civilians.
NATO says they were armed insurgents.
The raid deaths have been condemned by President Hamid Karzai, who said the Afghan government had repeatedly warned NATO ''about such irresponsible operations''.
The BBC reports civilian deaths at the hands of NATO forces are a major cause of anger among Afghans.