A U.S. Marine assigned to the 3rd Marine Division died Tuesday during a training incident at Camp Schwab in Okinawa, Japan, the U.S. military confirmed Wednesday morning. The service member's identity has not been released, pending notification of next of kin.

Camp Schwab, located on the northeastern coast of Okinawa Prefecture, is a major Marine Corps installation and a hub for amphibious and jungle warfare training. The circumstances of the incident remain under investigation, according to a statement from the 3rd Marine Division.

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The division expressed condolences, saying, “We express our deepest condolences to the family and loved ones of our Marine.” The military said the Marine's name will be withheld for 24 hours after family members have been notified, a standard protocol to ensure relatives are informed before public disclosure.

The death comes amid heightened scrutiny of U.S. military activities in Okinawa. Last month, Secretary of State Marco Rubio stated that the United States would cooperate with Japanese authorities in investigating allegations that a U.S. Marine killed a woman on the island. That case has fueled local resentment over the large American military presence.

Okinawa hosts roughly 80,000 U.S. personnel and dependents, making it a focal point for bilateral security arrangements and periodic anti-base protests. The U.S. and Japan have recently deepened defense cooperation, including plans to jointly produce advanced missiles, as part of efforts to counter regional threats.

The investigation into Tuesday's incident is expected to examine training protocols and equipment. The Marine Corps has not indicated whether the death was combat-related or accidental.

This is the latest in a series of military training fatalities, raising questions about safety standards. Earlier this year, the Pentagon banned betting on military operations via prediction markets, and Defense Secretary Pete Hegseth has faced scrutiny over other incidents, including damage to historic artifacts.

The 3rd Marine Division, headquartered at Camp Courtney, is a key component of U.S. forces in the Indo-Pacific, regularly conducting exercises with Japanese allies. The division said more information will be released as the investigation progresses.