Greece on Thursday said face masks would be compulsory both indoors and outside to limit the spread of the coronavirus during Christmas and New Year's gatherings, AFP reports.

More than 20,000 people have died of the virus with over 600 currently in intensive care. The government has resisted calls from health experts for additional safeguards and mobility restrictions, even among the vaccinated.

“There is major mobility during the festive season and large crowds gather outdoors,” Health Minister Thanos Plevris told reporters.

“As of 0400 GMT on Friday ... masks will be compulsory in all indoor and outdoor areas,” he said, adding that the measure would remain in force until at least January 2.