( Reuters ) - Separately, NATO forces killed three Afghans in the eastern province of Kunar on Monday after a car in which they were traveling failed to halt at a check-point despite being told to stop and the firing of a warning shot, NATO said.
Two Afghans were wounded in the firing.
Residents of the area protested against the incident, the latest in a string of civilian casualties caused by foreign troops.
More than 120 Afghan civilians have been killed by foreign forces in recent months, according to government officials and residents.
Civilian casualties are particularly problematical for President Hamid Karzai, already facing widespread resentment among the public over Taliban attacks, lack of development and growing corruption.