Afghan officials say nine civilians have been killed in a NATO airstrike during a battle with militants in a northeastern province.
Authorities say NATO forces called in airstrikes after their base in Kapisa province came under attack by militants. The U.S. military says the incident is under investigation.
The incident came as Afghan President Hamid Karzai condemned a suicide attack Sunday that preceded a gun battle between U.S. troops and militants that killed up to 10 Afghan civilians.
Mr. Karzai ordered a probe into Sunday's deaths in Nangahar province.
U.S. officials say it is not yet clear if the civilians were killed by American troops or by the militants.
Afghans angered by the civilian deaths held several protests Sunday to denounce U.S. forces.
The Associated Press said two of its journalists covering the aftermath of the shooting had their photos and video deleted by a U.S. soldier. The U.S. military has not confirmed this, but the wire service said it will file a protest.