HONOLULU -- U.S. Navy divers found a fourth body in the Japanese fishing vessel Ehime Maru late Thursday, the third full day of searching.

The body was brought to the surface and taken to the Honolulu medical examiner's office, along with another body that was recovered earlier in the day.

Meanwhile, the body of the first Japanese high school student to be removed from the sunken ship has been identified. Naval and Japanese consulate authorities Thursday notified the family of Katsuya Nomoto (pictured, left), 17, that his body was the second found and removed from the vessel by divers late Wednesday.

Earlier Wednesday, authorities identified the body of the ship's chief radio operator, Hirotaka Segawa, 60.

Divers have yet to find five bodies in the ship where nine Japanese men and boys were killed eight months ago when it was rammed by the submarine USS Greeneville. Navy officials said that they still expect to recover several more bodies during a month-long search, but probably not all nine.

Medical examiners said that they used dental records to identify Nomoto and determined the cause of the youth's death to be drowning.

Japanese officials also disclosed that they recovered a wedding ring belonging to crewman Hiroshi Makisawa, 37, in the mud surrounding the ship. According to officials, Makisawa's wife had begged the Navy to find the ring if at all possible.

In all, five adults and four students were lost in the Feb. 9 accident, while 26 men and boys survived.