A teenage suicide bomber killed three people on Wednesday in an attack targeting a local anti-terror chief, police said, amid a spate of violence across Iraq that left 10 dead.
The bombing in the western town of Heet was the second targeting Lieutenant Colonel Walid Sulaiman al-Heeti's house in less than three months and wounded two people, although Heeti himself was unharmed.
"Witnesses said that the attack was committed by a boy whose age did not exceed 14," police Captain Walid al-Heeti said.
The blast killed two housebuilders and a policeman who were at Heeti's home at the time of the attack.
Heeti had been rebuilding the house after it was targeted in coordinated bombings in the town, 60 kilometres from Anbar province's capital of Ramadi, on January 7 that killed seven people.
He is a leader of a campaign against Al-Qaeda in the mostly Sunni province that helped dramatically reduce the terror network's presence in Anbar, Iraq's biggest province in area.
Several cities in Anbar were used as insurgent bases in the aftermath of the US-led invasion of 2003.
But since 2006, local Sunni tribes have sided with the US military and Iraqi authorities. Daily violence has dropped dramatically as Al-Qaeda fighters have been ejected from the region.