At least 21 navy personnel at "INS Angre," a shore establishment at Mumbai city in southwestern state of Maharashtra, have tested positive for the coronavirus, reported India Today on Saturday.

"INS Angre" works as a base depot for ships and units based in Mumbai.

Most of the cases are asymptomatic and the first case of them has been traced to a single sailor who was tested positive on April 7.

Entire living block was immediately put under quarantine – containment zone and INS Angre too is under lockdown, according to a statement. The Indian Navy has said all actions as per established COVID-19 protocol are being taken.

There are no cases of infection on board ships and submarines.

According to latest figures issued by the authorities on Saturday morning, India has confirmed 14,378 cases and the death toll due to COVID-19 in India rose to 480. 

(Cover photo: A doctor holds a plastic bag full of swab specimen during lockdown to control the spread of the new coronavirus in Mumbai, India, April 16, 2020. /AP)