Marine Corp General not returning to post following deadly incident last summer

(KYMA, KECY/ NBC News) - A Marine Corp two-star General will not be returning to his post following the investigation of a fatal Marine training mission last summer.

Last month, the US Marine Corps suspended Robert Castellvi from his post as Inspector General and he will not be returning to that position.

A command investigation found that Castellvi was responsible for some of the failures that led to the deadliest Assault Amphibious Vehicle training accident in history.

In a statement released on Wednesday by the Marine Corps, they said "the commandant took adverse administration actions against him."

The eight Marines and one sailor drowned when their AAV took on water during a training missions and sunk off the souther California coast.

According to an investigation, the service members were not properly trained in evacuation and safety procedures.