April 16 (Reuters) - A U.S. marine was killed south of Baghdad on Saturday by a roadside bomb that exploded near troops conducting a foot patrol, the U.S. military has said.

Another U.S. marine was killed in combat in western Anbar province also on Saturday.

Following are the latest figures for military deaths in Iraq since the U.S.-led invasion in March 2003:

U.S.-LED COALITION FORCES:

United States 3,301

Britain 142

Other nations 124

IRAQIS:

Military Between 4,900 and 6,375#

Civilians Between 61,391 and 67,364*

# = Think-tank estimates for military under Saddam Hussein killed during the 2003 war. No reliable official figures have been issued since new security forces were set up in late 2003.

* = From www.iraqbodycount.net (IBC), run by academics and peace activists, based on reports from at least two media sources. IBC says on its Web site that the figure underestimates the true number of casualties.

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