Hundreds of cars are stuck on a hillside trunk road in Japan after it was hit by a snowstorm which is now heading north, officials said Sunday.
The snowstorm killed three people, grounded more than 100 flights and disrupted road and rail transport Friday and Saturday.
It is now moving northward, Japan's meteorological agency said Sunday, warning of heavy snow, storms and snowslides as well as high waves in eastern and northern Japan.
National Route 18 that runs through Gunma and Nagano prefectures north of Tokyo is partly closed as hundreds of cars are stuck due to heavy snow, a local official told AFP.
The congestion extends for several kilometres, said the official in the ski resort of Karuizawa in Nagano prefecture.
"We have opened up three community halls nearby for people who were inside the stuck cars, and are now preparing to offer hot meals," he said.
"Some drivers have run out of gasoline so they need temporary shelter."
Up to 250 cars are stuck on the road, the Asahi Shimbun reported.
The temperature fell as low as minus 3.6 degrees Celsius (26 degree Fahrenheit) Sunday morning in Karuizawa, with accumulated snow about 90 centimetres (36 inches) deep, the weather agency said.
Congestion extended for 30 kilometres (19 miles) on National Route 4 that runs through the northern prefectures of Fukushima and Miyagi, public broadcaster NHK reported.
The transport ministry has started delivering emergency aid including water and portable toilets to drivers of stuck cars, it said.
Snow began falling Friday morning in the capital Tokyo and had piled up to 26 centimetres by early Saturday, a week after the heaviest snowfall in decades left 11 people dead and more than 1,200 injured across the nation.
Most snow in the capital had melted thanks to rain late Saturday and sunshine Sunday.
But forecasters predict more snow again in the region around Tokyo later this week.
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