At least five people have died in a winter storm that has seized much of the US, leading to mass school closures, travel chaos and power cuts.
Seven US states declared emergencies: Maryland, Virginia, West Virginia, Kansas, Missouri, Kentucky and Arkansas.
More than 2,300 flights have been cancelled, with nearly 9,000 delays also reported owing to the extreme weather caused by the polar vortex of icy cold air that usually circles the North Pole.
Around 190,000 people had no power early on Tuesday across states in the storm’s path, according to Poweroutage.us.
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