It was on the USS Essex.
According to Navy media operations officer Rick Chernitzer, the ship’s medical personnel responded to the scene and found the wounded sailor.
She was transported to the UCSD Trauma Center and was pronounced dead a short time later.
Chernitzer said the sailor’s identification is being withheld until her family is notified of her death.
He said a formal investigation is now underway aboard the amphibious assault ship, which is currently at its homeport in San Diego.