The attacks, several roadside bombs and cars packed with explosives, wounded more than 100 people. Most of the casualties were likely Shiite Muslims, a frequent target of Sunni insurgents who have long sought to provoke civil war in Iraq.
Police said the deadliest strike targeted a marketplace in Baiyaa, a Shiite neighbourhood in southwestern Baghdad. A car parked outside a shopping area exploded around midday, killing six people and injuring 42. Hospital officials confirmed the casualties.
An hour earlier, near-simultaneous blasts hit two groups of Iranian pilgrims near the gold-domed Moussa al-Kadhim mosque in the Shiite neighbourhood of Kazimiyah, according to security forces.
A pair of bombs killed five pilgrims resting near the shrine. A car exploded next to a bus carrying Iranian pilgrims in the nearby Shiite area of Shula, killing another three people.
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