Marine killed in Iraq

(CNN) - A U.S Marine serving in Iraq's Anbar province was killed Saturday in a non-combat-related incident, the military reported.

The incident is under investigation and the Marine's name is being withheld until family members are notified, said a written release from the Department of Defense.

Not including Saturday's fatality, 4,251 U.S. troops have died in the Iraq war since March 20, 2003.