Flooding has devastated much of southern Alberta, killing three people and prompting authorities to evacuate the western Canadian city of Calgary's entire downtown -- an estimated 75,000 people.

Flooding in Calgary (Dave Buston/AFP/Getty Images)

Inside the city's hockey arena, the waters reached as high as the 10th row. Canadian Prime Minister Stephen Harper called the flooding "stunning." Harper, a Calgary resident, said he never imagined there would be a flood of this magnitude in this part of Canada.

Overflowing rivers washed out roads and bridges, soaked homes, knocked out power and turned streets into dirt-brown waterways around southern Alberta.

Royal Canadian Mounted Police Sgt. Patricia Neely told reporters two of the three dead were recovered.

 

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