The soldiers were killed when the amphibious assault vehicle they were in sank.
The US marine corps has found a sunken amphibious assault vehicle that was involved in a “fatal accident” during an exercise off the coast of southern California last week.
The remains of eight soldiers who died in the incident were also found.
The amphibious assault vehicle sank on July 30 off the coast of San Clemente Island about 125 kilometers from San Diego.
As a result of “an incident during an exercise,” as the Marine Corps described it, nine soldiers were killed. The amphibious assault vehicle filled with water during the evening training maneuver “coast-ship.”