BAGHDAD - An Iraqi detainee at the US-run detention facility Camp Cropper near Baghdad airport died two days ago, the military reported on Friday.
The detainee was pronounced dead on April 4 and an investigation is on to determine the cause of death, the military said.
Almost half a dozen security detainees have died since November in US-run facilities in Iraq which hold thousands of Iraqis without charge but who are considered security threats.
US condemns Iranian treatment of Britons
The White House on Friday condemned as "unfortunate and extremely disappointing" any mistreatment by Iran of British naval personnel held captive by Tehran for roughly two weeks.
"What the sailors said this morning is unfortunate and extremely disappointing if they were treated inappropriately in any way," national security spokesman Gordon Johndroe told reporters.
"If what they described is accurate, and I have no reason to believe it is not, if what they described is accurate then that would not seem to be appropriate behavior and action," said Johndroe.