A police officer said the first bomb exploded during rush hour Sunday morning in the Amiriyah neighborhood, killing two pedestrians and wounding nine others.
He added that another roadside bomb went off in nearby Khadra neighborhood, killing two civilians and wounding eight.
A medical official confirmed the causality figures. Both officials spoke on condition of anonymity as they were not authorized to release information, AP reported.
More than 3,000 people have been killed in violence over the past few months.