A sailor assigned to the virus-stricken aircraft carrier USS Theodore Roosevelt who was admitted to the intensive care unit last week died of coronavirus-related complications today, the Navy announced.

The news marks the first virus-related death among the crew of the Roosevelt, which was forced to dock in Guam last month after an outbreak onboard. It was also the first coronavirus-related death of an active-duty service member, a Defense Department spokesperson confirmed; a member of the New Jersey National Guard died from the infection on March 30.

Four additional sailors from the ship were admitted to the hospital over the weekend, according to Navy spokesperson Cmdr. Clay Doss. They are all in stable condition; none is in the ICU and none require a ventilator, he said.

tag