Interior Ministry spokesman Saad Maan Ibrahim said the today afternoon attack occurred when two suicide bombers attacked the motorcade of Wisam al-Hardan near his house in Baghdad's western Harthiyah neighborhood.
The Sunni tribal sheik was not hurt in the attack.
Al-Hardan was recently appointed by the Iraqi prime minister to lead the Sunni militia known as Sahwa, which joined US troops in the war against al-Qaida at the height of Iraq war. Ever since, it has been a target for Sunni insurgents who consider them traitors.