Casualties, including several dead, have been reported in a an airstrike launched by theUS in Fallujah on what it claims is a safe house used by followers of Jordanian terrorist Abu Musab al-Zarqawi.
Brigadier General Mark Kimmitt, the US-led coalition's deputy chief of operations, said the strike involved precision weapons to "target and destroy" the safe house and was based on "multiple confirmations of actionable intelligence".
"Wherever and whenever we find elements of the Zarqawi network, we will attack them," he said.
Large explosions rocked the Sunni Muslim city west of Baghdad. Ambulances raced to the area after the blasts. Wounded and dead were being evacuated, said Iraqi Police Colonel Mekky Zeidan.
US officials offered no casualty figures, but Al-Jazeera television reported that three people were killed and six wounded.
The attack last Saturday levelled a building US officials said was a suspected al-Zarqawi safe house. Fallujah officials claimed the house was owned by an Iraqi family and that no foreign terrorists were there.
Al-Zarqawi, who is thought to have ties to al Qaida, has been blamed for a string of car bombs across Iraq, including a blast last week that killed 35 people and wounded 145 at a military recruiting centre in Baghdad.
His Monotheism and Jihad movement carried out its threat to behead South Korean hostage Kim Sun-il after South Korea refused to withdraw its troops from Iraq.