US and Iraqi forces began a series of operations today targeting al-Qaeda in Iraq after an upsurge in suicide bombings.
US commanders say the bombings are an attempt by the militant group to reignite sectarian violence.
Lieut-Gen Raymond Odierno, the commander of US troops in Iraq, said a series of operations to "pursue and neutralise remaining al-Qaeda in Iraq and other extremist elements" were under way.
The US military says al-Qaeda has been badly damaged but has the capacity to carry out attacks that cause mass casualties.
The military says the organisation is targeting US-backed mainly Sunni neighbourhood patrols, armed volunteers paid by the US military that include former insurgent fighters who have turned against al-Qaeda.
Yesterday, a double suicide bomb attack killed 14 people including the head of the neighbourhood patrols in the Adhamiya district of Baghdad, a former al-Qaeda stronghold.
Gunmen in five cars kidnapped up to ten volunteers in nearby Shaab district.