By comparison, 3,718 civilians were killed in December 2006, the deadliest month of the war, according to a US military tally.
An influx of US troops, a Shiite militia cease-fire and a Sunni revolt against the extremists among them combined to stop the country's slide toward civil war in 2008.
While violence has never stopped in Iraq, the recent uptick in double-digit daily death tolls has stunned many Iraqis after several years of relative calm. It also has raised fears that long-dormant Shiite militias could renew their campaign of retaliatory violence.
"If the security forces are not capable of protecting us, we will protect ourselves and end the misery," said Hatem Muhsin, who lives in Sadr City, a Shiite enclave in Baghdad. "The sectarian war has just started."
Al-Qaeda in Iraq has claimed responsibility for much of the violence, including a string of car bombings that targeted mostly Shiite neighbourhoods in Baghdad on Monday, killing 55 people.
Sheik Mahmoud Abdel Rahman's 11-month-old grandson, Latif, and the child's mother, Hasnah Abdel Rasul, were among them. The infant was wrapped in a shroud with verses from the Quran as Abdel Rahman carried it in a procession to bury his two loved ones in the Shiite holy city of Najaf.
The al-Qaida umbrella group Islamic State of Iraq and the Levant said Monday's attacks were in retaliation for the "arrests, torturing and targeting of Sunnis" by the Shiite-led government. It vowed more attacks.
The statement's authenticity could not be independently confirmed but it was posted on a website commonly used by militants and its style was consistent with earlier statements by the terror network.
Anger among Iraq's minority Muslim sect stems largely from allegations of abuses and vague anti-terrorism laws that allow random arrests at the hands of the Shiite-led government, which gained power after the 2003 US-led invasion that ousted Saddam Hussein's Sunni-dominated regime. Tensions rose sharply this year after the April raid, which followed months of largely peaceful Sunni protests.
Police and hospital officials, who spoke on condition of anonymity because they weren't authorised to release the information, also reported six more people killed in attacks on Tuesday.
The rising violence has dealt a blow to US hopes of leaving behind a stable country after the American military withdrew in December 2011. More than 4,500 US troops died in the war and billions of dollars were spent.
The developments came as the US government shutdown threatened a measure to provide relief for Iraqis who risked their lives to help the United States.
The special visa has allowed more than 12,000 Iraqi contractors, interpreters and others who aided US efforts, and family members, to move to the United States since 2007. It expired at midnight, with an estimated 2,000 applications still in the bureaucratic process, but the Senate extended it by unanimous consent a half-hour ahead of Monday night's deadline.
The House had called for its extension in a temporary spending bill and could now take it up separately.
"These brave Iraqis risked their lives to protect Americans and many of them are now living under constant threat of retribution from al-Qaeda terrorists and Iranian-backed militants as a result of their decision to help American men and women in uniform," Sens. John McCain, R-Ariz., and Jeanne Shaheen, D-N.H., said in a joint statement Tuesday. "The United States has a moral obligation to stand with those Iraqis who stood with us. We cannot, and we will not, abandon our Iraqi partners."
- AP
