Rescue helicopters have evacuated dozens of people from snow-blocked villages in Serbia and Bosnia as a severe cold spell affects Eastern Europe.
Officials air-lifted emergency food and medical supplies as the number of dead rose to at least 89. Forty-three of the deaths were in Ukraine alone.
Emergency crews worked overtime as temperatures plunged to -32.5 C in some areas. European weather alert network Meteoalarm warned of "extremely dangerous" conditions.
The weather is also affecting gas supplies. Russia's Gazprom, which supplies a quarter of Europe's gas imports, said it was getting more requests from export markets than it could physically accommodate as demand from Russia spikes.
Parts of the Black Sea froze near the Romanian coastline and snow fell on Croatian islands in the Adriatic Sea.
In Bulgaria, 16 towns recorded their lowest temperatures since records started 100 years ago. At least four people died of hypothermia. In Sofia, cash machines were reported to have frozen.
In central Serbia, helicopters pulled out 12 people. Two more people froze to death in the snow and two others are missing, bringing that nation's death toll to five.
Helicopters were also being used to rescue people and take supplies to remote villages in northern Bosnia.
"All together between 200 and 300 people are cut off," said Bosnian rescue official Milimir Doder. "We are supplying them for the second day with food and medication."
"The minuses are killing us," said Bosnian villager Goran Milat. Some Bosnian villages have not had electricity for days.
Ukraine alone reported 43 deaths, mostly of homeless people. More than 720 others were taken to hospital with hypothermia and frostbite.
Ukraine's 1+1 channel broadcast pictures of a man being treated for frostbite in his toes, which had turned completely black.
Hospitals were told not to discharge homeless patients even if their treatment was finished to protect them from the cold.
In Romania, temperatures plunged to -32.5 C, and six homeless people died in the past 24 hours from hypothermia, the health ministry reported.
Hundreds of other people were sent to shelters to protect them from the extreme cold.
Five people died of hypothermia in Poland in one day. At least 20 people have died since Friday.
Several schools across Hungary suspended classes, including one in the east that said it could not afford the heating bills.
In Russia, temperatures fell to -21 C in Moscow but only one person was reported to have died of the cold.
By contrast, in New York temperatures are unseasonably high, at 16 C, with people pictured enjoying blazing sunshine in Central Park.
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