The Islamic State group has claimed responsibility for the attacks in Shia neighbourhood of al-Shaab and in al-Rasheed
Baghdad came under attack again on Tuesday with four separate blasts rocking the city, killing at least 75 people, medics have said.
The two initial blasts were reported around midday. The first and deadliest killed 39 people at an outdoor market in the predominantly Shia neighbourhood of al-Shaab, a security source told Iraqi news site Sumaria News. A second blast, believed to be a car bomb, happened shortly after, killing at least two people in the southern neighbourhood al-Rasheed.
Iraqi Prime Minister Haider al-Abadi announced after the bombing al-Shaab that a security official in charge of the area had been sacked, but gave no more details.
A few hours later two blasts hit the largely Shia suburb of Sadr City in the north-east of the capital. The first killed 25 people at a crowded market, while a separate attack targeted a restaurant, killing nine.
BREAKING: Iraqi officials say a suicide car bombing has hit a crowded market in Baghdad's Shiite Sadr City area, killing 14.
— The Associated Press (@AP) May 17, 2016
At least 90 other people have also been injured in the blasts which took place at around midday, officials told AFP.
The Islamic State (IS) group has claimed responsibility for the first two attacks.
The bombings are the latest in a string of high casualty attacks, which has now seen more than 160 people killed in and around Baghdad since last week.
Abadi on Tuesday afternoon vowed a strong response to the attacks, pledging to make sweeping changes to the city's security apparatus.
The influential Shia cleric Muqtada al-Sadr, meanwhile, has slammed Iraq's politicians for their "inability to protect" Iraqi civilians.
"These explosions...are the clearest evidence that your government has become unable to protect you and offer you security," Sadr said in a statement.
Sadr City, which was targeted with a double bombing on Tuesday, is a stronghold of support for the firebrand cleric, who recently led a wave of anti-government protest over corruption and the formulation of a new government.
Imad Alou, an expert on security affairs, told the al-Monitor website that the bombings were a result of both the losses IS was facing on the battlefield and the current political instability in Iraq.
“Whenever a political crisis emerges, the security situation in the country is negatively affected,” he said, referring to the continued wrangling in the Baghdad parliament over the introduction of a technocratic government.
“IS has moved its sleeper cells as it has been facing major pressure on the battle fronts. The government ought to activate its intelligence efforts and find out where these sleeper cells are located in the provinces and cities. [The government] should spare no effort to put pressure on these cells and arrest them.”
IS overran large areas north and west of Baghdad in June 2014, and later made further advances in Anbar, seizing its capital Ramadi in 2015.
On Monday, the Pentagon said that IS has lost almost half of what it had once held in Iraq.
The Defence Department previously estimated that IS fighters had lost control of about 40 percent of the territory they claimed in Iraq and about 10 percent of the land they held in Syria, but has now revised the estimates.