Three American sailors on board USS Theodore Roosevelt have been evacuated after testing positive for COVID-19.
The aircraft carrier has 5,000 personnel on board and was on deployment in the Pacific Ocean.
US Acting Navy Secretary Thomas Modly said the three sailors are the first confirmed cases of coronavirus on a deployed ship.
"We've identified all the folks they've had contact with, and we're quarantining them as well," said Mr Modly during a Pentagon news conference.
"This is an example of how we are able to keep our ships deployed at seas and underway, even with active COVID-19 cases."
Chief of naval operations, Admiral Michael Gilday, said the infected sailors were flown to a military hospital in the Pacific region.
Meanwhile, a US hospital ship is due to dock in Los Angeles to help tackle the coronavirus outbreak there.
USNS Mercy is expected to arrive within the next couple of days and will deploy more than a thousand military personnel and civilians.
USNS Comfort is also preparing to provide medical care to New York City.
Cover Image: Aircraft carrier USS Theodore Roosevelt on exercise earlier this month (Picture: US Department of Defense).