Nine people have died after a tourist coach skidded off an icy highway in the northwestern US state of Oregon. Around 20 people were injured.
The vehicle – which was carrying 40 people – plunged 30 metres down an embankment on rural Interstate-84, coming to rest at the bottom of a snowy slope.
The coach is owned by a Canadian tour company and was en route from Las Vegas to Vancouver.
Meanwhile in the eastern US, a winter storm has dumped up to 30 centimetres of snow in several states including Massachusetts, Connecticut and Rhode Island.
The mayor of Boston declared a snow emergency and deployed about 200 gritting vehicles to the city’s streets.
In Canada, several thousand homes are without power in Nova Scotia, Prince Edward Island and New Brunswick.
Flights to and from several eastern provinces were cancelled.
Forecasters have warned of an even bigger snow storm for eastern Quebec on Monday.