An investigation by US military and state department officials has found that the death toll from an attack last month that has soured relations with the Afghan government is far less than either Kabul or the United Nations has claimed.

The government of President Karzai said that 90 "civilians" were killed in the air raid. But the US report shows that number to be wildly off base:

An Afghan government commission concluded that 90 civilians were killed in the Aug. 22 fighting in Azizabad - a claim backed by a preliminary U.N. report. The U.S. report Tuesday said 30 to 35 of those killed were Taliban fighters.

The civilian death claims in Azizabad has caused new friction between President Hamid Karzai and his Western supporters. Karzai has long castigated Western military commanders over civilian deaths resulting from their raids.

The U.S. report said American and Afghan forces began taking fire from militants as the forces approached Azizabad in the early hours of Aug. 22. The incoming fire "justified use of well-aimed small-arms fire and close air support to defend the combined force," the report said.

The U.S. said its range in casualty numbers was determined by observation of enemy movements during the engagement and on-site observations immediately after the battle. It said a known Taliban commander, Mullah Siddiq, and five to seven civilians were among the dead. Two civilians were wounded. Five Taliban were detained, the report said.