April 1 (Reuters) - Six U.S. soldiers have been killed in roadside bombings southwest of Baghdad, the military said in a statement on Sunday.

A U.S. marine died in a non-combat incident in Anbar province.

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 3,253

Britain 135

Other nations 124

IRAQIS:

Military Between 4,900 and 6,375#

Civilians Between 60,411 and 66,280*

# = 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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