Violence in Iraq, including shelling in a militant-held city and an attack targeting Shi'ite pilgrims, has killed more than 30 people in 24 hours.
The bloodshed comes as officials count ballots from the April 30 general election, the first since US troops withdrew in late 2011, and amid a protracted surge in nationwide unrest that has sparked fears of a return to the sectarian killing sprees of 2006-2007.
In Fallujah, just west of Baghdad, shelling in southern areas of the city killed 11 people and wounded four, doctor Ahmed Shami said on Sunday.
It was not immediately clear who was behind the bombardment, which began on Saturday.
In a sign of both the reach of anti-government militants and weakness of security forces, all of Fallujah and shifting parts of Anbar provincial capital Ramadi, farther west, have been out of government control since early January.
The crisis in the desert province of Anbar, which shares a long border with conflict-hit Syria, erupted in late December when security forces dismantled Iraq's main Sunni Arab anti-government protest camp just outside Ramadi.
Militants subsequently seized parts of Ramadi and all of Fallujah, the first time anti-government forces have exercised such open control in major cities since the peak of the deadly violence that followed the US-led invasion of 2003.
North of Baghdad, a bombing and shooting targeted a bus carrying Shi'ite pilgrims on Saturday evening, killing 11 people and wounded 21, police said.
The pilgrims were returning from Samarra when a roadside bomb exploded on the outskirts of the town of Balad and gunmen opened fire on the bus.
The worshippers had been participating in commemorations marking the death of Imam Ali al-Hadi, the 10th of 12 imams key to the Shi'ite Muslim faith.
His body lies in a venerated shrine in Samarra also housing his son Hassan al-Askari, the 11th imam.
Funerals for the victims were held on Sunday in southern Maysan province.
Also on Saturday evening, police found the bodies of eight family members shot dead inside their home in a predominantly Sunni area southeast of Baghdad.
It was unclear why the family had been targeted or who killed them.
And on Sunday, a shooting in Baghdad and a magnetic "sticky bomb" on a vehicle west of the capital killed two people, while a suicide bombing in the northern city of Mosul left one soldier dead, officials said.
The bloodshed comes just days after a parliamentary election, with incumbent Prime Minister Nuri al-Maliki seeking a third term despite the dramatic deterioration in security and widespread political opposition.
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