(updates with new tolls)

April 10 (Reuters) - A U.S. soldier was killed overnight by a roadside bomb in central Baghdad, the U.S. military said on Thursday, taking the U.S. death toll for April to 20.

Earlier the U.S. military said that a U.S. soldier was killed on Wednesday in a bomb attack in Salahuddin province, and that two U.S. soldiers were killed in separate roadside bomb attacks in eastern and northeastern Baghdad also on Wednesday.

They also reported the deaths of two U.S. soldiers in accidents in separate incidents in Baghdad.

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 4,032

Britain 176

Other nations 134

IRAQIS:

Military Between 4,900 and 6,375#

Civilians Between 82,725 and 90,251*

# = 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)

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