BAGHDAD, June 13 (Xinhua) -- An American soldier was killed in a roadside bomb explosion during combat operations on Friday, the U.S. military said on Saturday.

    A military statement gave no further details about the incident, but said the soldier is assigned to Multi-National Corps - Iraq (MNC-I) which is the Tactical Unit responsible for command and control of operations in Iraq.

    About 4,312 U.S. soldiers have been killed in Iraq since the outbreak of Iraq war in March 2003, according to media count based on Pentagon figures.

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