Greece’s Deputy Minister for Civil Protection Nikos Chardalias announced on Tuesday that the town of Kranidi is now quarantined and under strict lockdown after a total of 150 refugees and migrants tested positive for the COVID-19 coronavirus.

Authorities tested a total of 470 asylum seekers, mostly from Africa, who are staying in a hotel which has been designated as temporary accommodations for migrants and asylum seekers.

Health officials conducted mass tests after a 28-year-old pregnant woman from Somalia had tested positive for the virus on Monday.