Greek Prime Minister Kyriakos Mitsotakis on Thursday announced fresh measures aimed at containing a record spike in coronavirus infections.
The use of masks outdoors will become mandatory, Mitsotakis said in a televised address.
Meanwhile, authorities will impose a curfew from 12.30 a.m. until 5 a.m. in regions that belong to risk levels three and four in the four-tier system.
The new measures will come into effect on Saturday at 6 a.m.
Health authorities announced 882 new coronavirus cases on Thursday, as well as 15 new deaths.