UPDATE June 23, 5:04 p.m. EST:
New details emerged Friday about last week's deadly collision between the USS Fitzgerald and a cargo ship, according to CNN.
A defense official told CNN that five of the seven Navy sailors killed in the incident may have died quickly.
A preliminary Navy analysis reportedly says the group may have been "incapacitated" almost instantly after the collision.
The official also noted the Navy is trying to corroborate accounts the remaining two sailors attempted to help the others escape.
"But at some point the ship somehow lost communication," they said of the two sailors, who also perished.
All seven sailors were reportedly found dead in the berthing area, which flooded after impact.
UPDATE June 18 at 7:42 p.m. EST:
The US Navy has identified the seven sailors who were found dead in the flooded berthing compartments of the USS Fitzgerald on Sunday morning.
- Gunner's Mate Seaman Dakota Kyle Rigsby, 19, from Palmyra, Virginia
- Yeoman 3rd Class Shingo Alexander Douglass, 25, from San Diego, California
- Sonar Technician 3rd Class Ngoc T Truong Huynh, 25, from Oakville, Connecticut
- Gunner's Mate 2nd Class Noe Hernandez, 26, from Weslaco, Texas
- Fire Controlman 2nd Class Carlosvictor Ganzon Sibayan, 23, from Chula Vista, California
- Personnel Specialist 1st Class Xavier Alec Martin, 24, from Halethorpe, Maryland
The incident is still under investigation.
UPDATE 6:36 a.m. EST:
The missing sailors of the USS Fitzgerald were found dead in flooded berthing compartments Sunday morning, Japan time, according to a statement from the Navy's 7th Fleet.
The Navy declined to give the names and number of shipmates found out of respect for the families.
UPDATE 8:21 p.m. EST:
The Japanese Coast Guard, which was called on for assistance after a U.S. Navy destroyer had collided with a merchant ship, reported that seven crew members are missing and one is injured, according to USA Today. This appears to reverse earlier statements issued by the Navy in which it had reported no injuries as of 7 p.m. EST.
Coast Guard spokesman Yuichi Sugino said coast guard patrol ships and aircraft were headed to the scene, but couldn't offer further details.
The Philippine ship weighs about 29,060 tons and measures 730 feet.
WATCH | The collision occurred as the USS Fitzgerald was operating about 56 nautical miles southwest of Yokosuka, Japan.
UPDATE 7:09 p.m. EST:
There have been no reports of casualties at this time, despite "flooding in some spaces," the Navy tweeted Friday night.
ORIGINAL STORY: U.S. Navy destroyer USS Fitzgerald collided with a Philippine merchant vessel off the coast of Japan early Saturday morning local time, according to the Navy's 7th Fleet. The Fitzgerald was operating about 56 miles southwest of Yokosuka, Japan.
The Japanese Coast Guard is on the scene for assistance.
The 7th Fleet said it was looking into "the extent of personnel injuries." The incident will be investigated.