Greece gripped by cold front, snowfall, winds disrupt travel

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The downtown area is covered in snow in Thessaloniki, Greece, Jan. 4, 2019. Many parts of the country were hit by extreme cold snap and heavy snowfall recently due to a low-pressure weather system named "Sophia". In the northern city of Thessaloniki, two international flights were cancelled and five were diverted to other Greek airports on Thursday, local authorities announced. (Xinhua/Lefteris Partsalis)