Hundreds of people gather to protest in eastern Afghanistan, angered by the deaths of up to 12 civilians in a NATO air strike.
Up to two thousand blocked a road in Khost province.
There is widespread anger in Afghanistan about civilian casualties.
The number of Afghan civilians killed since the US-led invasion ten years ago hit a record high in 2010, according to rights campaigners.
More than 2,400 died – a fifth as a result of action by foreign troops, it is claimed.
The alliance has confirmed the deaths occurred accidentally during an operation targeting insurgents in Khost province.
The victims are believed to have been family members.