Marines halt search for 8 missing troops, all presumed dead

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FILE – The U.S. flag was lowered to half-staff at Park Semper Fi in San Clemente, Calif., on Friday, July 31, 2020. Eight troops aboard a landing craft that sank off the Southern California coast during a training exercise are presumed dead, the Marine Corps announced Sunday, Aug. 2, 2020. The Marines said they had called off the search that started late Thursday afternoon when the amphibious assault vehicle sank with seven Marines and one sailor aboard. (Paul Bersebach/The Orange County Register via AP, file)

SAN DIEGO (AP/News Nation) — Eight troops missing after their landing craft sank off the Southern California coast during a training exercise are presumed dead, the Marine Corps announced Sunday.

The Marines said they had called off the search that started late Thursday afternoon when the amphibious assault vehicle sank with 15 Marines and one Navy sailor aboard. Eight Marines were rescued, but one later died and two are in critical condition.

The 26-ton, tank-like craft took on water and quickly sank in hundreds of feet of water — too deep for divers — making it difficult to reach.

“It is with as heavy heart that I decided to conclude the search and rescue effort,” said Col. Christopher Bronzi, commander of the 15th Marine Expeditionary Unit.

All of the Marines aboard were attached to the 15th Marine Expeditionary Unit, based at nearby Camp Pendleton, north of San Diego. They ranged in age from 19 to early 20s and were all wearing combat gear, including body armor and flotation vests, according to Lt. Gen. Joseph Osterman, commanding general of the 1st Marine Expeditionary Force.

Their names were released early Monday.

Lance Cpl. Guillermo S. Perez, 20, of New Braunfels, Texas, was pronounced dead at the scene before being transported by helicopter to a hospital in San Diego. He was a rifleman with Bravo Company, Battalion Landing Team (BLT) 1/4, 15th MEU. 

The presumed dead are:   

  • Pfc. Bryan J. Baltierra, 19, of Corona, California, a rifleman with Bravo Company, BLT 1/4, 15th MEU.
  • Lance Cpl. Marco A. Barranco, 21, of Montebello, California, a rifleman with Bravo Company, BLT 1/4, 15th MEU.
  • Pfc. Evan A. Bath, 19, of Oak Creek, Wisconsin, a rifleman with Bravo Company, BLT 1/4, 15th MEU.
  • U.S. Navy Hospitalman Christopher Gnem, 22, of Stockton, California, a hospital corpsman with Bravo Company, BLT 1/4, 15th MEU.
  • Pfc. Jack Ryan Ostrovsky, 21, of Bend, Oregon, a rifleman with Bravo Company, BLT 1/4, 15th MEU.
  • Cpl. Wesley A. Rodd, 23, of Harris, Texas, a rifleman with Bravo Company, BLT 1/4, 15th MEU.
  • Lance Cpl. Chase D. Sweetwood, 19, of Portland, Oregon, a rifleman with Bravo Company, BLT 1/4, 15th MEU.
  • Cpl. Cesar A. Villanueva, 21, of Riverside, California, a rifleman with Bravo Company, BLT 1/4, 15th MEU.

The craft was one of 13 amphibious assault vehicles that had just completed an exercise. It was heading back to a Navy ship when it began taking on water about a half-mile from the Navy-owned island off San Diego.

Troops on board two other amphibious assault vehicles responded quickly but couldn’t stop the sinking, Osterman said at a Friday news conference.

Over the course of the search, dozens of helicopters and ships searched more than 1,000 square nautical miles of sea.

Efforts will now turn to finding and recovering the service members and investigating the circumstances surrounding the sinking, officials said.

The vehicle, nicknamed an “amtrac” — short for “amphibious tractor” — was designed to be buoyant and had three water-tight hatches and two large troop hatches. The Marines use the vehicles to transport troops and their equipment from Navy ships to land.

The vehicles have been used since 1972, and are continually refurbished.

The Marine Corps commandant, Gen. David Berger, suspended waterborne operations of all of its more than 800 amphibious assault vehicles across the branch until the cause of the accident is determined. He said the move was out of “an abundance of caution.”

It was the deadliest of several accidents involving amtracs that have occurred during Camp Pendleton exercises in recent years.

In 2017, 14 Marines and one Navy sailor were hospitalized after their vehicle hit a natural gas line at the camp, igniting a fire that engulfed the landing craft.

And in 2011, a Marine died when an amphibious assault vehicle in a training exercise sank offshore of the camp.

The Associated Press contributed to this report.

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