A civilian affiliated with oilfield services giant Halliburton (search) was shot and killed in Iraq, the second person connected to the firm to die in an attack in a month.

The employee, who was not identified, worked for Halliburton subsidiary Kellogg Brown & Root (search) and was assigned to a team supporting Army mail delivery, said Halliburton spokeswoman Wendy Hall.

"The employee was fatally shot this morning in Baghdad," Hall said Wednesday. "Our employee was driving a vehicle that was escorted by military personnel. The employee was evacuated to a nearby combat support hospital, where he was pronounced dead on arrival."

The U.S. military in Baghdad confirmed that a U.S. civilian contractor was killed Wednesday in Iraq, but would not offer any details.

An American civilian contractor employed by KBR was killed Aug. 5 when a remote-control bomb exploded under the truck he was driving north of Saddam Hussein's hometown of Tikrit.

Hall cited security reasons for refusing to identify the victim of Wednesday's attack. She declined to release the number of Halliburton-affiliated workers in the region.

Halliburton, the oil field-services and construction company formerly led by Vice President Dick Cheney (search), has major contracts for reconstruction in both Iraq and Afghanistan.