Administrative regions of Greece
It has extended its flights to Athens and Thessaloniki
Temperatures in part of Kozani in northern Greece fell to as low as minus 20 degrees Celsius
Many Athenians woke up to a blanket of snow on Monday morning, as the cold front "Medea" that swept into Greece on Saturday affected most parts of the country and particularly higher altitudes.
In the capital, snowfall came early in the morning and blanketed northern suburbs like Kifissia, Ekali and Melissia, while also giving a dusting to the downtown area.
Evzones of the Presidential Guard march past an open-air exhibition of portraits of heroes from the 1821 War of Independence, placed on the fence of the National Garden in Athens on Tuesday. The event is organized by the Sylvia Ioannou Foundation, the National History Museum and the Municipality of Athens, as part of the celebrations for the bicentennial of the Greek Revolution.
Regions across Greece were hit by power cuts on Sunday night after a fire broke out at a high-voltage power station in a suburb of Athens, the fire brigade and officials at the country's power grid operator, ADMIE, said.
About 12 firefighters with four engines were battling the flames at the power station in Aspropyrgos, in the west of Athens.