Monday's bombing struck a busy commercial street in the Habibiya section of Baghdad's Sadr City, killing at least nine people and wounding 22.
Earlier in northwestern Baghdad, police say a bomb detonated near an intelligence branch of the Interior Ministry, killing four people, including two children.
Hospital officials corroborated the casualty figures.
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While no one has claimed responsibility for this attack, the Islamic State militant group has claimed a number of recent bombings.
