The bodies of a number of sailors who were missing after the U.S. Navy destroyer USS Fitzgerald collided with a container ship were found in flooded compartments of the damaged ship, the U.S. Seventh Fleet said in a statement on Sunday.
Japanese media said all seven of the sailors who had been reported missing were found dead.
"The families are being notified and being provided the support they need during this difficult time," it said.
The Fitzgerald, an Aegis guided missile destroyer, collided with the Philippine-flagged merchant vessel more than three times its size some 56 nautical miles southwest of Yokosuka early on Saturday.
Three people were medically evacuated to the U.S. Naval Hospital in Yokosuka after the collision, including the ship's commanding officer, Commander Bryce Benson, who was reported to be in stable condition, the Navy said.
The other two were being treated for lacerations and bruises and others injured were being assessed aboard the ship.