The White House has condemned Tuesday's suicide bombings in Baghdad that has left at least 77 people dead and over 140 injured.
So-called Islamic State have claimed responsibility for a suicide bombing which killed 41 and wounded more than 70 in the northern district of al-Shaab, as well as car bomb in nearby Sadr City, that left 30 dead and 57 injured.
A further six were killed after a car exploded in al-Rasheed, south west of the Iraqi capital, wounding a further 21. There has been no immediate claim of responsibility.
The attacks come just days after a spate of car bombings killed over 90 people in nearby areas.
It was reported Prime Minister Haider al-Abadi ordered the arrest of the official in charge of al-Shaab's security on Tuesday, allegedly without giving a reason.
Fears are growing that Baghdad could relapse into the bloodletting of a decade ago, when weekly sectarian-motivated suicide bombings killed scores of people and set off revenge attacks against the Sunnis.
Cleric Moqtada al-Sadr blamed the government for failing to provide adequate security, and deployed loyal militiamen to the streets in Sadr City and other Shi'ite areas.
In a statement, al-Sadr called the bombings "the clearest evidence that your government has become incapable of protecting you and providing you with security".