At least three people have been killed and more than a 100,000 forced to flee their homes as floods hit western Canada.
Officials ordered the evacuation of the centre of Calgary, Alberta, after both rivers that flow through it burst their banks.
The floods washed away roads and bridges, cut-off electricity and submerged hundreds of homes.
Communities further south were under total evacuation orders, the BBC reports
An estimated 230,000 people live and work in central Calgary but officials believed there would be few people to evacuate because many did not come to work on Friday.
Some 25 neighbourhoods in Calgary, a city of one million, had already been evacuated. An estimated 75,000 residents have been ordered out of their homes.
The floods come after a rainy week in Alberta, capped by 10cm of downpour on Thursday.
Military helicopters rescued about 30 people off rooftops in the Calgary area.