Separately, a suicide car bomb killed 10 people on a major bridge in downtown Baghdad - the second attack on a span over the Tigris river this week, police said. The Jadriyah bridge suffered little damage.

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On Thursday, a suicide truck bomb completely collapsed the al-Sarafiyah bridge in northern Baghdad, killing 11 people and sending cars plummeting into the waters below.

Police said four would-be suicide attackers were killed Saturday in the northern city of Kirkuk when one of them detonated his explosives belt prematurely. All four men were killed but no civilians were hurt, said police Brig. Adil Zain-Alabideen.

Also Saturday, gunmen attacked the western Baghdad house of Adnan al-Dulaimi, head of the largest Sunni bloc in Iraq's parliament, police said. Al-Dulaimi was not at home at the time of the attack, and is believed to be in Jordan.

Clashes erupted between his guards and the gunmen, lasting about half an hour. Five guards were wounded, police said.

Three bodyguards of the deputy minister of industry, Mohammed Abdul Jabar, were injured in a drive-by shooting on his convoy in western Baghdad, police said. The minister was in the convoy but escaped injury.

In other violence, three civilians and a policeman were killed in drive-by shootings in Fallujah and Hillah, about 60 miles south of Baghdad, police said. Two policemen and a civilian died in a roadside bombing south of Baghdad, and another civilian died in a similar bombing in central Baghdad, police said.

A bomb planted in a garbage can missed a passing police patrol in Baghdad's southwestern Baya district Saturday, but injured three electricity workers who were working nearby, police said.

The US military issued a statement saying American troops captured 17 suspected insurgents, including an alleged al-Qaida in Iraq member, during raids Saturday morning.

Eight suspected insurgents were killed by British forces late Friday west of Basra, Iraq's second-largest city, the British military said in a statement. The suspects had been planting bombs in the path of a British patrol, the statement said.

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