A Texas sailor was among the seven people who died in the collision between the USS Fitzgerald, a destroyer ship, and a Philippine container ship off the coast of Japan.

Noe Hernandez (Facebook)

Noe Hernandez, 26, of Weslaco, was found dead in a flooded berthing compartment, the Navy said Sunday night. Hernandez was a gunner's mate.

According to a Facebook post from a relative, Hernandez had a wife and a child.

RIP my dear friend Noe Hernandez 💔 Thank you for giving the ultimate sacrifice! We will miss you!! https://t.co/nWTmmPWtrW — A.T. (@MissLaney2309) June 18, 2017

The other sailors who died in the collision were:

Gunner's Mate Seaman Dakota Kyle Rigsby , 19, from Palmyra, Va.

Yeoman 3rd Class Shingo Alexander Douglass , 25, from San Diego.

Sonar Technician 3rd Class Ngoc T Truong Huynh , 25, from Oakville, Conn.

Fire Controlman 2nd Class Carlosvictor Ganzon Sibayan , 23, from Chula Vista, Calif.

Personnel Specialist 1st Class Xavier Alec Martin , 24, from Halethorpe, Md.

Fire Controlman 1st Class Gary Leo Rehm Jr., 37, from Elyria, Ohio

The collision occurred around 2:30 a.m. Saturday, when most of the crew was asleep in the berthing compartments.

{"type":"video","title":"Dallas News Video","author_name":"Dallas News","_id":"VwamttYjE63viUCV2fVH38WaMcKm2boV","provider_name":"Ooyala","html":"

","raw":"{\"type\":\"video\",\"title\":\"Dallas News Video\",\"author_name\":\"Dallas News\",\"_id\":\"VwamttYjE63viUCV2fVH38WaMcKm2boV\",\"provider_name\":\"Ooyala\",\"html\":\"\\u003Cdiv class=\\\"oo-vid-container\\\" data-oo-content-id=\\\"VwamttYjE63viUCV2fVH38WaMcKm2boV\\\"\\u003E\\u003C\\/div\\u003E\\u003Cscript defer src=\\\"https:\\/\\/www.dallasnews.com\\/resources\\/motif\\/dist\\/js\\/ooyala.js\\\"\\u003E\\u003C\\/script\\u003E\"}","providerType":"ooyala","providerLink":"https://www.dallasnews.com/oembed","embedType":"video"}

The cause of the collision remains unclear. The ships were 64 miles south of Yokosuka, in Japan, when the Philippine ship, the ACX Crystal, rammed into the Fitzgerald's starboard, or right, side. Under international maritime rules, a vessel must give way to a ship passing on the starboard side, meaning the Crystal had the right of way.

According to reports, the crash caused the Fitzgerald to cave in about a third of the way back, causing significant damage. The crew had to fight to keep the ship from sinking, according to U.S. 7th Fleet commander Vice Admiral Joseph P. Aucoin.

Three U.S. sailors were injured and taken to a naval hospital to recover. No injuries were reported on the Crystal.

The Navy said the incident is under investigation.

The Associated Press contributed to this report.