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Police in Bosnia-Herzegovina said the roof of a sports center in downtown Sarajevo that was used for ice skating events in the 1984 Winter Olympics collapsed Sunday under the weight of heavy snow. No injuries or fatalities have been reported.

In Serbia, the heavy snow continued to fall Sunday as some 50,000 people remained stranded in snowbound remote areas, some without electricity.

The Albanian government is expected to declare a state of emergency in the north and south of the country, Prime Minister Sali Berisha said.

Much of Italy’s north-central east was digging out Sunday after heavy snowfall collapsed roofs onto barnyard animals, closed roads and wreaked havoc with air transportation.

Twenty horses were killed when the roof collapsed on a barn in Badia Tedalda, one of the central Tuscan towns hardest hit by the snow, the ANSA news agency reported, citing Mayor Fabrizio Giovannini. In Le Marche, regional civil protection crews reported thousands of cows, pigs and other farm animals killed.

In Rome, the sun shone and whatever snow remained from Saturday’s blizzard — the second in as many weeks — melted away. But Mayor Gianni Alemanno kept a ban in place on motorcycles in the city center, where some streets remained icy.

In Russia, 20,000 amateur and professional cross-country skiers in Yakhroma, some 30 miles from Moscow, were undeterred by temperatures of minus 9 degrees Fahrenheit. They raced for about three miles as part of a mass skiing competition held across the country every year.

Dusan Stojanovic in Belgrade, Serbia; Nebi Qena in Athens; Predrag Milic in Podgorica, Montenegro; Llazar Semini in Tirana, Albania; and Nicole Winfield in Rome contributed to this article.