A U.S. sailor from the aircraft carrier Theodore Roosevelt, which has been stricken with the largest novel coronavirus outbreak in the U.S. military, died Monday from complications of the virus, the Navy said.

The name of the sailor, a chief petty officer in his 40s who was the first aboard the aircraft carrier to die from the virus, is being withheld until relatives are notified, the Navy said. No other information about the crew member was released.

Four other Roosevelt crew members have been hospitalized, among at least 585 from the aircraft carrier who have tested positive for Covid-19. Across the U.S. military, 2.567 service members had tested positive for Covid-19 as of Monday.

The crew member who died had been diagnosed March 30 with the virus and placed in an isolation room at the U.S. naval base in Guam, where the ship has been docked since March 27. On April 9, during one of two daily checks, the sailor was found unresponsive and was administered CPR before he was moved to intensive care at the U.S. Naval Hospital in Guam, the Navy said.

The crew of the aircraft carrier learned of the death earlier Monday, before the Navy’s public announcement, according to a parent of a Roosevelt sailor.