Powerful winds and heavy rains have swept across northern Europe, killing at least 11 people and leaving hundreds of thousands of others without electricity.

Weather experts describe the heavy rains, flooding and gale-force winds that swept through southern Scandinavia and northern Britain Saturday and Sunday as the worst in years. Winds in some areas reached more than 100 kilometers an hour.

Northern European Storms Kill at Least 11

The deaths were reported in Sweden and Denmark. Some of the victims were killed when falling trees struck their cars.

Northern European Storms Kill at Least 11

Conditions also forced Scandinavian authorities to close numerous roads, bridges and airports, as well as suspend ferry and train services.

Northern European Storms Kill at Least 11

In northwest Britain, authorities in the town of Carlisle used helicopters to rescue people trapped on rooftops by floodwaters.