Iraq is in the midst of its deadliest and most sustained wave of violence since 2008, raising fears the nation is returning to the widespread sectarian-charged bloodshed that pushed it to the brink of civil war in 2006 and 2007. More than 2,000 people have been killed in bombings and other violent attacks since the start of April.
The deadliest attack, which killed at least 11, struck the militia checkpoint shortly before midday in the village of Zangoura, which is just south of the former insurgent stronghold of Ramadi, some 115 kilometers west of Baghdad, according to police.
One bomb, apparently planted by the side of the road, was the source of the initial blast. A second detonated as villagers rushed to help the victims of the first explosion, police said.
In the town of Dujail, 80 kilometers north of Baghdad, a suicide bomber rammed his explosives-laden car into a tent set up to welcome mourners at the funeral of a local Shiite tribal leader.
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Dujail mayor Naif al-Khazraji and Ali al-Haidari, a senior security official in the town, said the blast killed at least four and wounded four others. Dujail is a predominantly Shiite town surrounded by mostly Sunni communities.
There was no immediate claim of responsibility.