In the first of the coordinated strikes, a suicide car bomber targeting policemen detonated his vehicle outside Baghdad's al-Nahda bus station, the U.S. military said. A second car loaded with explosives detonated inside the bus terminal.
A second suicide bomber detonated explosives near the al-Kindi hospital where many of the wounded from the first two attacks were arriving for treatment, police Maj. Thamir al-Gharawi said. It was unclear if the hospital was targeted in the blast.
Bodies were strewn across the bus station's parking lot. U.S. and Iraqi forces responded to the blasts, the first of which went off at about 8 a.m.
On Tuesday, Kurdish leaders insisted they have no plan to secede from Iraq even if they want the new constitution to give them the right to do so - one of the issues that forced a delay in finishing the draft charter.
Meetings resume Wednesday among Iraqi leaders seeking to finish the draft by the new deadline - midnight Aug. 22.
CBS News Correspondent Sharyn Alfonsi reports that Iraqi leaders say one issue under negotiation is women's rights and the degree to which much Islamic law should determine what those rights are.
Iraqi leaders expressed confidence they will overcome differences over remaining issues, including Kurdish demands for self-determination and the role of Islam, by Monday.
However, many leaders were equally sanguine about prospects for meeting the original Aug. 15 deadline. If no agreement can be reached this time, the interim constitution requires that parliament be dissolved.
President Bush is applauding what he calls the "heroic efforts" of the Iraqis as they try to negotiate a compromise.
"Their efforts," Mr. Bush said Tuesday, "are a tribute to democracy and an example that difficult problems can be solved peacefully through debate, negotiation, and compromise."
In other recent developments: