BOSTON (CBS) – A Navy ship docked in Boston is seeing a spike in coronavirus cases.

At least 18 sailors onboard the USNS Leroy Grumman have tested positive for COVID-19, including the crew’s medic.

The ship has been in Boston since January for scheduled maintenance and it was scheduled to leave at the end of May.

Everyone onboard is now in quarantine.

There are about 50 people currently on the ship.