Updating an earlier post is an article from USA Today.

MARINE COMBAT HEADQUARTERS, Central Iraq — U.S. Marines raiding an Iraqi military prison in Baghdad found bloodstained uniforms belonging to at least two American prisoners-of-war, officers here said Tuesday.
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Battling through platoon-sized units of Iraqi paramilitaries, the Marines found the tops of two Army chemical protective suits with the names of two of the POWs. Some unnamed desert camouflage uniform trousers also were found. "Some of the uniform items appear to have been shot," said Lt. Col. Nick Morano, 41, senior watch officer at the Marine command post here in central Iraq.
Used syringes and spent antibiotics packages were found alongside the uniforms, which officers believe indicates that the POWs received some medical care.
Elements of the 1st Marine Division are continuing to search the facilities at Rashid airfield, which include a military hospital, military prison, and a headquarters for the Saddam Fedayeen paramilitaries. "It's conceivable they may be nearby," said Morano, referring to the POWs.