Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Four Marines Killed in Accident at US Base Four U.S. Marines were killed Wednesday during an operation to clear a range of unexploded ordnance at Camp Pendleton in southern California. Officials have not released any details on the accident. They say they are investigating the cause. The deaths come about eight months after a mortar explosion killed seven Marines during a live-fire training exercise in the western state of Nevada. A military investigation determined human error was to blame for that accident. __________________________________________________________________ [1]http://www.voanews.com/content/four-marines-killed-in-accident-at-us -base/1789879.html References 1. http://www.voanews.com/content/four-marines-killed-in-accident-at-us-base/1789879.html