Baghdad ? Civilian deaths rose in August to their second-highest monthly level this year, according to figures compiled Saturday by The Associated Press. That raises questions about whether U.S. strategy is working days before Congress receives landmark reports that will decide the course of the war.

At least 81 American service members also died in Iraq during August – an increase of two over the previous month but well below the year’s monthly high of 126 in May. American deaths surpassed the 80 mark during only two months of 2006.

U.S. military officials have insisted that the security plan launched early this year have brought a decrease in attacks on civilians and sectarian killings, especially in the Baghdad area, which was the focus of the new strategy.

The top American commander, Gen. David Petraeus, is expected to cite security improvements when he and Ambassador Ryan Crocker submit reports on progress toward stability and national reconciliation to Congress during the week of Sept. 10.

However, figures compiled by the AP from police reports nationwide show that at least 1,809 civilians were killed across the country last month compared with 1,760 in July. That brings to 27,564 the number of Iraqi civilians killed since AP began collecting data on April 28, 2005.

According to the AP count, civilian deaths reached a high point during the wave of sectarian bombings, kidnappings and killings at the end of last year – 2,172 in December and 1,967 in the previous month.

Crocker predicted Saturday there will be no “fundamental or quick change” in the American policy on Iraq and appealed for patience.

AP figures show May was the deadliest month for Iraqi civilians this year, with 1,901 killed in political or sectarian violence.

The August total included 520 people killed in quadruple suicide bombings on communities of Yazidis, a Kurdish-speaking religious minority, near the Syrian border.

Despite the high nationwide totals, Petraeus was quoted Friday as saying the troop increase has sharply reduced sectarian killings in Baghdad, which accounted for most of the deaths during the wave of Sunni-Shiite slaughter at the end of last year.

Although American forces have been successful in curbing major suicide bombings, stopping small scale atrocities has proven more challenging.

On Saturday, gunmen stormed a house in the Dora district, seizing three women and a man. The gunmen killed two of the women about yards away and fled with the two other victims, a policeman said on condition of anonymity because he was not supposed to release the information.

The U.S. command expressed hope Saturday that an order by powerful Shiite militia leader Muqtada al-Sadr stand down his Mahdi Army fighters for up to six months would curb attacks on civilians and allow American troops to step up the fight against al-Qaida.