Heavy snow has caused disruption across Europe, covering much of Italy to the south and Turkey to the east.
The freeze has caused at least 80 deaths, mainly in Ukraine and Poland.
Temperatures were so low that some areas in Romania along the shores of the Black Sea froze.
In central Italy, heavy goods lorries were barred from motorways.
Ukrainian officials reported that the number of deaths attributed to the freeze had risen to 43, with 13 people dying of hypothermia in the past 24 hours.
Schools and colleges in the capital, Kiev, were shut on Wednesday because of the cold.
School closures were also reported in northern Greece, where temperatures of -16C were recorded.
In Bosnia and Serbia, helicopters were used to airlift supplies to villages cut off by drifting snow.
Seven more deaths were reported in Poland, bringing to more than 20 the number who died.