In the largest blast, a truck bomb detonated near a filling station in west Baghdad, setting fire to a huge fuel tank and killing at least 50 people and wounding at least 60 more, according to Iraqi security officials.
A US military spokeswoman said Iraqi and American soldiers were at the scene and that initial reports were that a 7,000 gallon (26,500 litre) fuel tank had caught fire and exploded. She could not confirm the death toll.
Hours earlier a car bomb ripped through a busy Baghdad shopping district, killing at least 16 Iraqis and wounding 14, according to Brigadier General Qassim Atta, an Iraqi army spokesman for Baghdad security operations.
The blast erupted near the Karrada Harij electronics market, sending a dull boom echoing across the city and sending a plume of smoke skywards.
Iraqi forces sealed off the area, as residents and ambulances ferried the dead and dying to city hospitals.
Ten of the bodies were taken to Ibn Nafees hospital following the explosion and 25 people, including women, were wounded.
A third car bomb went off in the southern neighbourhood of Dura, one of Baghdad’s most notorious districts, killing three more people and wounding another five.