The attacks came nearly two weeks after Iraqis cast ballots in the country's first parliamentary election since the US military withdrawal in 2011. No preliminary results have yet been released, deepening a sense of uncertainty in a country strained by a resurgence of violence.
It was the deadliest day in Iraq since April 28, when militant strikes on polling stations and other targets killed 46. No group immediately claimed responsibility for today's attacks, most of which hit Baghdad during rush hour, but they were most likely the work of the al-Qaida offshoot known as the Islamic State in Iraq and the Levant.
Coordinated car bomb attacks against Shiites, whom it considers heretics, are one of its favourite tactics.
All of today's blasts were caused by explosives-laden vehicles parked in public areas. They coincided with the Shiite communities' celebration of the birthday of Imam Ali, the Prophet Muhammad's cousin and son-in-law and the sect's most sacred martyr.
Two blasts hit Baghdad's poor Shiite district of Sadr City, killing six people and wounding 13, according to police.
A short while later, a car bomb exploded in a commercial street in the capital's eastern district of Jamila, killing three people and wounding 10. Police said a fourth car bomb went off near a traffic police office in eastern Baghdad, killing four people and wounding seven.
Other blasts struck commercial areas in downtown Baghdad, in the eastern districts of Ur and Maamil, and in the southern Dora district. Those attacks together killed 15 and wounded 45, according to police.
