Iraq is facing its most relentless wave of bloodshed since the 2011 US military withdrawal, deepening fears that the country is heading back toward the widespread sectarian fighting that pushed it to the brink of civil war in the years after the invasion.
More than 500 people have been killed in May. April was Iraq's deadliest month since June 2008, according to a United Nations tally that put last month's death toll at more than 700.
Authorities in Baghdad also announced a ban in effect from early tomorrow on cars bearing temporary black license plates, which are common in post-war Iraq, where for years it was difficult to obtain new ones. The plates are typically on older model vehicles and are more difficult to trace, and authorities say they are frequently used in car bombings.
Most of today's blasts went off in Baghdad. Car bombs killed four in the northeastern Shiite neighborhood of Binouq, and three died in a bombing at a market selling spare car parts in central Baghdad, according to police.
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Police officials also said that a roadside bomb exploded near a police patrol in the largely Shiite central commercial district of Karradah, killing three people there.
The Karradah blast shattered glass and twisted metal signs on several storefronts, and left the stricken police unit's modified Ford pickup truck charred and mangled.
"What have these innocent people done to deserve this?" asked witness Sinan Ali. "So many people were hurt. Who is responsible?"
In the largely Sunni neighborhood of Azamiyah in the capital's north, a car bomb struck near a military convoy, killing three people, including two soldiers, according to police. Another 14 people were wounded in that attack.
Hospital officials confirmed the casualties. In Anbar province, the provincial governor escaped an assassination attempt when a suicide bomber rammed his explosive-laden car into his convoy, his deputy Dhari Akan said. The governor escaped unharmed, but four of his guards were wounded, Arkan said.
Anbar is a vast Sunni-dominated province west of Baghdad that has been the center for months of protests against the Shiite-led government.
In the northern city of Mosul, two police officers said a suicide bomber killed three when he blew himself up on a federal police checkpoint. Mosul is a former insurgent stronghold, located about 360 kilometers northwest of Baghdad.