US Marine missing off Southern California coast during training exercise

A U.S. Marine serving aboard the USS Anchorage went missing during a training exercise off the Southern California coast, prompting a massive multi-agency search that has since transitioned to a recovery operation, the Navy said.

According to the Navy, the Makin Island Amphious Ready Group launched the search at about 1:21 a.m. Thursday after the Marine was reported missing during integrated training with the 13th Marine Expeditionary Unit.

The Navy said the Marine’s identity is being withheld until 24 hours after next of kin are notified.

COAST GUARD USING SHIP, HELICOPTER TO SEARCH FOR MISSING CREW MEMBER IN EASTERN PACIFIC OCEAN

“Our thoughts and prayers are with the family and all who are affected during this difficult time,” the Navy said in a news release on Saturday.

The Navy transitioned from search-and-rescue efforts to a search-and-recovery operation at about 9 p.m. Friday.

The search covered approximately 2,400 square miles over 43 hours and involved three surface ships and 12 aircraft from the U.S. Navy, U.S. Marine Corps, U.S. Coast Guard and U.S. Air Force, according to the Navy.

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The USS Anchorage is an amphibious transport dock ship assigned to the Makin Island Amphibious Ready Group.

Fox News Digital has reached out to the Navy for additional information.