(CNN) -- A dozen car bombs exploded across Baghdad during rush hour Monday morning, killing 33 people, police in Baghdad said.
Another 100 people were wounded.
Most of the blasts struck crowded sections of mainly Shiite areas of Baghdad.
Iraq's Sunni-Shiite divide has led to more than 6,000 deaths in 2013.
The almost daily stream of violence in Iraq is a bitter reminder that the country is still far away from stabilizing.
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