BAGHDAD, Iraq (CNN) -- Two bombings in separate Iraq provinces on Monday killed eight U.S. troops, the U.S. military said. A boy with a machine gun weeps Monday at the site of a suicide bombing in Kanan that killed a sheik. A roadside bomb killed three U.S. soldiers and an interpreter in Diyala province, which has been a major front in the war during the "surge" of U.S. troops fighting insurgents near the capital. Earlier in the day, at least five U.S. soldiers on foot patrol were killed and three others wounded in a suicide bombing in Baghdad. In addition, suicide bombers killed five Iraqis in two bombings in Diyala province Monday morning, including a sheik who helped battle Sunni extremists and his 5-year-old niece. Watch new suicide tactics in Iraq »
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NEW: Roadside bomb kills 3 U.S. soldiers and an interpreter in Diyala province
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Earlier, at least 5 U.S. soldiers on foot patrol die in Baghdad suicide bombing
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Baghdad blast marks deadliest attack on U.S. troops since January 28
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Female suicide bomber kills sheik, 5-year-old niece and guard at Iraqi home
"Five soldiers paid the ultimate sacrifice on behalf of the Iraqi and @placeholder people.