A suicide bomber killed 20 people and wounded dozens today during a funeral west of Baghdad, Iraqi police said.
Police said the bomber blew himself up inside the funeral tent in the village of Abu Munasir in Anbar province.
There was no claim of responsibility, but suspicion is likely to fall on Sunni Islamist al-Qaeda militants as the Sunni tribesmen attending the funeral were opposed to al-Qaeda, police said.
Al-Qaeda is blamed for most suicide attacks in Iraq, and it has regularly warned it would target Sunni Arab tribes that have joined the US military to fight the group.
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Anbar, in western Iraq, was once an al-Qaeda stronghold until Sunni Arab tribes and US forces drove the group out in late 2006 and 2007.