Authorities in Iraq say a brother of one of Iraq's two vice presidents has been killed in an ambush in Baghdad. The brother of Shi'ite Vice President Adel Abdul Mehdi - cabinet advisor Ghalib Abdul Mehdi - and his driver were killed when gunmen fired at their car. Al-Qaida in Iraq claimed responsibility. Separately, police say Iraq's Deputy Trade Minister Dawoud Hassan was wounded when his motorcade was ambushed in the capital. The U.S. Defense Department says nearly 26-thousand Iraqi civilians have been killed or wounded by insurgents since January 2004. A report posted on a Pentagon web site says about 80 percent of insurgent attacks during that time targeted U.S. forces, while Iraqis accounted for 80 percent of the casualties.