A police officer says the Monday afternoon attack took place in Baghdad's southwestern neighborhood of Bayaa. The explosives-laden car was parked near a real estate office in an area where dozens of people gather every day.
The police officer says least 16 other people were wounded.
A medical official confirmed the casualty figures. Both officials spoke on condition of anonymity as they were not authorized to release information.
Baghdad has seen near-daily attacks as security forces struggle to dislodge the Islamic State group from vast areas in northern and western Iraq seized by the extremists last summer.
