Days of torrential rain have caused severe flooding and landslides across part of Canada and the northwestern United States, with thousands of people being evacuated or rescued from stranded vehicles.

In Canada, a mudslide swept cars off Highway 99 near Pemberton, some 100 miles (160 km) to the northeast of Vancouver, killing at least one person. Rescue teams have been searching through the debris for two other people reported missing, officials said.

Western parts of the US state of Washington have begun drying out, and crews are working to restore power and reopen roads.

On Monday, nearly 300 people were rescued by helicopter from Highway 7 near the town of Agassiz after cars were trapped between two mudslides.

In the Washington, a 59-year-old man has also been reported missing after his truck was caught by flooding. Officials in the small city of Sumas, near the Canadian border, said hundreds of people had been evacuated and that three-quarters of homes there had water damage. The flooding also caused widespread power outages in the western part of the state.

About 500 had to be evacuated in Sumas, as authorities are still assessing damages as water levels have started dropping.

The body of a woman was recovered from a landslide near the small community of Lillooet, British Columbia. Two others have also been reported missing.

The cities of Abbotsford, Chilliwack and Merritt in the Canadian province of British Columbia have also seen mass evacuations amid the flooding.

The National Weather Service has issued flood warnings for several rivers around western Washington. As floodwaters from the Skagit river surrounded homes, residents of Hamilton escaped to the higher grounds of the First Baptist Church. 

Vancouver port cut off

Canadian officials said rail access to Canada's largest port of Vancouver was cut. 

"All rail service coming to and from the Port of Vancouver is halted because of flooding in the British Columbia interior," port spokesperson Matti Polychronis said on Tuesday.

The port moves C$550 million ($440 million, €389 million) worth of cargo a day. The two railway companies serving the port, Canadian Pacific Rail and Canadian National Railway, said it might take days to clear track outages.

Floods have also caused pipelines to cease operation, with Enbridge Inc. shutting a segment of a British Columbia natural gas pipeline as a precaution and the Trans Mountain pipeline forced to close.

Torrential rain

The flooding comes after some areas of British Columbia received 8 inches (20 cm) of rain on Sunday, the amount that usually falls in a month.

Bellingham International Airport in Whatcom County in Washington state also experienced a month's worth of rain from Saturday through Monday. The National Weather Service put the amount at 5.57 inches.

The landslides and floods come less than six months after British Columbia was hit by record-breaking temperatures that led to some 500 heat-related deaths and wildfires. Climate scientists say such weather extremes have become more likely as a result of global warming.

tj/dj (Reuters, AFP, AP)