The body of an American civilian was found Friday in a vehicle in the Green Zone, and another contractor was killed by a rocket attack that night near the American Embassy, U.S. military officials said.
The body was believed to be that of a civilian working for the Department of Defense, said Lt. Col. Brian Maka, adding that the death was under investigation and no other details were immediately available.
An Iraqi police official, however, told The Associated Press that the American appeared to have been killed.
The official spoke on condition of anonymity because he was not authorized to speak to the press.
The second American was killed when a rocket struck the Green Zone Friday night at 8:15 p.m. local time, said military spokesman Maj. Jose A. Lopez.
The rocket attack and discovery of the body come as the Iraqi government has begun tearing down blast walls surrounding the Green Zone, which houses a number of government ministries as well as the American Embassy.
Iraq assumed control of the Green Zone under a U.S.-Iraqi security pact that took effect Jan. 1. The U.S. continues to provide its own security in key areas, such as near the embassy and at the small military base inside.
Under the pact, the American military must withdraw from Iraq's urban areas by June 30, 2009, and the rest of the country by the end of 2011. President Barack Obama, however, has announced plans to withdraw combat troops from Iraq by Aug. 31, 2010.
Since the Green Zone was established shortly after the 2003 U.S.-led invasion, it has been repeatedly shelled or attacked by suicide and car bombers.
In 2005, Ronald Schulz of Anchorage, Alaska, was believed to have been kidnapped from the Green Zone where he was working as an electrician. His body and that of a woman believed to be his Iraqi fiancee were found by the U.S. military in a grave in September 2008.
The Islamic Army in Iraq claimed in December 2005 that it had killed the pair.
