Military officials have reported the unfortunate death of a U.S. Marine following a vehicle training accident on Wednesday at Camp Pendleton, located in San Diego County, California.

According to a statement provided to Fox News Digital, the Marine tragically lost their life in what was described as a “tactical vehicle mishap.” The incident occurred at approximately 1:45 p.m. local time and involved the I Marine Expeditionary Force (I MEF), which is recognized as the largest Marine Air-Ground Task Force within the Corps.

The identity of the deceased Marine has not been disclosed as the investigation into the accident continues.

State Senator Catherine Blakespear, who represents the district that includes Camp Pendleton, expressed her sorrow over the incident, describing it as “tremendously upsetting.” She emphasized the significant sacrifices Marines make to ensure national security.

A photograph offers a perspective from the southbound I-5 Aliso Creek Rest Area, capturing Marines in training with Amphibious Combat Vehicles (ACV) at Camp Pendleton on September 26. The image was taken by Allen J. Schaben of the Los Angeles Times.

“I am incredibly saddened to learn of the tragic training accident at Camp Pendleton that claimed the life of a Marine from the 1st Marine Expeditionary Force,” Blakespear said in a Facebook post Wednesday. “My heart and deepest sympathies go out to the Marine’s family, loved ones, and other service members who are grieving this loss.

“Our Marines put themselves in harm’s way every day even on home soil during routine training so that our nation remains safe. Representing Camp Pendleton and these service members is a true honor and hearing of this is tremendously upsetting.”

The accident occurred at Camp Pendleton Marine Corps Base in California. (Allen J. Schaben / Los Angeles Times)

“I will be closely monitoring the investigation into this accident. In this difficult moment, I extend my condolences to all who are mourning within the Camp Pendleton community.”

The Associated Press reported that the death was not related to Steel Knight, an annual training exercise that began Monday on the base, citing officials. 

The incident is the latest training-related death at Camp Pendleton.

Marine recruits storm a hill during training exercises at Camp Pendleton in 2008. (Michael Macor/The San Francisco Chronicle)

In August 2023, Lance Cpl. Joseph D. Whaley, a Tennessee native, was killed during a nighttime live-fire training event at the base, the Marine Corps said. 

Months later, in December, officials also announced that Sgt. Matthew K. Bylski, a Michigan native, died when a tactical vehicle rolled over during training at Camp Pendleton.