"The chances of success [in Iraq] are essentially zero because the Iraqi people have no voice"
Non Sequitur, Cadiz, Spain
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As residents combed the ruins of the building on Sunday, a column of armoured US and Iraqi Humvee vehicles nearby came under machinegun fire.
Police in Hilla, close to the town of Haswa, said a curfew had been imposed.
In other violence, roadside bombs killed five US soldiers on Sunday, including four soliders from Task Force Lightning who were killed when an improvised explosive device hit their patrol in Diyala province, the military said in a statement.
Two more soldiers were wounded in the incident.
Meanwhile, in Baghdad on Sunday, armed men on rooftops opened fire on Iraqi soldiers in the al-Sinak area, prompting fighting in the narrow streets and alleys of one of Baghdad's oldest neighborhoods on the east side of the Tigris River.
At least two civilians were killed and four others were wounded in the clashes, police said.