The US military has announced the deaths of two soldiers in Iraq, bringing the total US military death toll to 2,000 since March 2003.
A US military statement confirmed two Marines died on Friday near the town of Amariya outside Falluja, when they were targeted by a roadside bomb.
Quoting Pentagon sources, CNN reported that 2,000 US military personnel had died in Iraq since the US-led invasion in March 2003.
The statement said the deaths were in addition to a marine and a sailor, who were earlier reported killed in the incident.
The 2,000 figure is expected to spur fresh calls for US President Bush to outline an exit strategy for the conflict in Iraq.
One US soldier, Sgt Keith Maupin, is listed as missing following his capture in an attack on a supply convoy in April last year.
He was shown with armed men in video released by a militant group shortly afterward. His whereabouts are unknown, but a later insurgent video said he had been killed.
Reliable figures for the number of Iraqis killed since the March 2003 US-led invasion are not available, but non-governmental organisations estimate at least 25,000 have died.