This Dec. 2009 photo released by the U.S. Marshal's Service shows Umar Farouk Abdulmutallab in Milan, Mich. (AP/HO)

PARIS - Snow settling near France's Mediterranean shores. German parents battling to buy sleds. British horse races called off over too much ice.

A European cold snap - awfully cold in some places - saw snow clog roads and airports Friday, knock out electricity and induce hoorays from schoolchildren kept home from school. The low temperatures, prompted by an Arctic weather system, are set to continue through the weekend.

Britain, already deep in its longest cold spell in nearly 30 years, registered its chilliest night yet this season: minus 22.3 degrees Celsius (minus 8.1 Fahrenheit) in the Scottish Highlands village of Altnaharra.

British authorities have used up so much grit on icy roads that on Friday they started to run out, leaving thousands of secondary roads and sidewalks untreated and turning them into sheets of black ice that stretched for blocks. Poland, too, saw shortages of salt for spilling on streets.

Gatwick Airport officials said 18,000 tons of snow had been removed from runways in recent days. A dozen flights were cancelled out of Marseille-Provence airport in southern France.

France's weather service issued an avalanche warning for the Alps and the Pyrenees for this weekend after days of heavy snowfall and strong winds. Some travellers abandoned plans to head to the ski slopes because of closed roads.

Last weekend, avalanches killed seven people in Switzerland at the start of its ski season.

For desperate parents from Britain to Berlin, the biggest challenge hasn't been snow-choked roads but finding a sled.

Manufacturers of all types of snow-slipping vehicles, from traditional wooden-runner sleds to plastic bobsleds with breaks are thrilled at the boom after years of fearing they had become victims of global warming.

"There hasn't been a run on sleds like this one since at least 25 years," said Michael Ress, owner Ress Kutschen sled factory in Schwebheim, Germany.

Ress' eight employees are currently working at maximum capacity, putting together 100 beech-wood sleds per day. The entire forthcoming production of this season's 3,000 sleds, which go for C35 ($50), has already been sold in advance.

"We're running out of supplies," said Ress, adding that he was forced to order certain metal parts from Asia because his usual German suppliers were out of stock.

In London, the harsh weather dominated Friday's Cabinet meeting. British union officials pleaded with employers to offer hot drinks to people working outside. A charity call centre set up to help the elderly cope with the snow and ice was shut down because workers could not get to the office.

Deep snow in Lanarkshire, Scotland, leftAlec Allison using a tractor to clear itfrom the roads of his farm. But that didn't help his sheep. At onepoint, heused a long stick to searchsnowdrifts where he found and freed one of his sheep.

In Merseyside in western England, construction workers helped rescue a flock of swans trapped in a frozen lake. The RSPCA animal welfare organization said it had received about 100 calls since Wednesday reporting ducks and swans stuck in ice on ponds and lakes.

In France, snow piled up from Normandy to Marseilles on the Mediterranean shore. Some 30 centimetres (11.8 inches) of snow fell on Arles and Avignon in southern France, according to the regional traffic centre, and snowdrifts piled higher than a meter (3.3 feet). Snowstorms cut electricity to thousands of homes.

Much of Spain was also shivering. A nature park in the normally temperate Murcia region in the southeast turned on heaters at a pen housing three giraffes more accustomed to savannah-like climes.

In the Catalonia region centred on Barcelona, snowy conditions prevented 72 schools from reopening after the Christmas vacation, providing an extra day off for more than 16,000 children.

Heavy rains caused flooding across central and southern Italy. Northern Italy was blanketed by snow, while Venice faced the "acqua alta" phenomenon - exceptionally high tides which often flood most of the lagoon city in winter.

In Sweden, temperatures dropped to -38.7 C (-37.6 F). That put a strain on the country's energy supplies, as Swedes heat up their houses more and imports are down from energy-rich neighbour Norway.

Norway is facing its lowest temperatures in more than two decades. The mercury dropped Friday to -42C (-44F) at Roros airport, in central Norway - the coldest temperature measured in mainland Norway since 1987.

Train companies, including the cross-Channel Eurostar, were running reduced service. A Eurostar train travelling from Brussels to London broke down in the Channel Tunnel on Thursday, but the head of the French train authority SNCF, Guillaume Pepy, said it "was linked to signal problems that have nothing to do with the cold."

That was a relief to commuters because last month Eurostar came to a standstill for days because of train breakdowns that left thousands of passengers stranded in the tunnel. Why? The company identified the problem as unusually dry, powdery snow that got into the trains' engines.

The cold is freezing out sporting types, too. Three British Premier League football matches Saturday have been postponed, and 10 of 16 matches in the Scottish Cup were called off. Two horse racing events - at Newcastle and Kelso next week - have been called off because of heaps of snow on already-frozen tracks.

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Baetz reported from Berlin. Associated Press writers Gregory Katz and Jill Lawless in London, Ariel David in Rome, Ian MacDougall in Olso, Louise Nordstrom in Stockholm, Daniel Woolls in Madrid, Karel Janicek in Prague contributed to this report.