FACTBOX: Military and civilian deaths in Iraq

(Reuters) - A roadside bomb killed four U.S. soldiers in Baghdad on Sunday, the military said, bringing the number of U.S. military deaths to 4,000 since the invasion of Iraq in 2003.

Following are the latest figures for soldiers and civilians killed since the U.S.-led invasion in March, 2003:

U.S.-LED COALITION FORCES:

United States 4,000

Britain 175

Other nations 134

IRAQIS:

Military Between 4,900 and 6,375#

Civilians Between 82,267 and 89,778*

# = 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. The IBC says on its Web site the figure underestimates the true number of casualties.

The U.S-led military coalition toll includes casualties from Iraq and the surrounding area where troops are stationed.

(Writing by David Cutler, London Editorial Reference Unit)