Heavy snowfall and plummeting temperatures shut schools and shops in the Greek capital on Monday, with many public services and businesses switching to remote working.
Traffic was halted on some central roads and on a national road connecting Athens to central Greece, as storm Barbara swept across the country, blanketing the capital.
Some metro stations close to the city's international airport were also shut and train routes to the northern city of Thessaloniki were suspended.
Authorities urged the public to avoid non-essential travel.
Fire brigade rescue crews had evacuated four people whose car was stuck in the snow in the Athens suburb of Aspropyrgos, according to state TV ERT.
The cold snap was expected to last until Tuesday, gradually affecting eastern and southern regions, including the island of Crete.
Heavy snow is rare in the Greek capital but the country has now been hit by extreme weather for a third consecutive winter. Until Monday's snow, winter in Greece has been unusually mild so far this year.
The Utah trade school student jailed on suspicion of fatally shooting conservative activist Charlie Kirk faces formal charges next week, according to the governor, from an act of violence widely seen as a foreboding inflection point in US politics.
Indian Prime Minister Narendra Modi appealed for peace on Saturday in Manipur state, the scene of two years of deadly ethnic violence, as he unveiled a package of development projects there worth nearly $1 billion.
European Union countries have shelved plans to approve a new climate change target next week, after pushback from governments including France and Germany over plans to quickly land a deal, three EU diplomats said on Friday.
Nepal's President Ramchandra Paudel dissolved parliament and called for fresh elections on March 5, his office said late on Friday, following a week of deadly violence that culminated in the appointment of the country's first woman Prime Minister in the interim.