100 million people affected by deep freeze in the US

Around 100 million people shivered In the United States as temperatures plummeted - with a wind chill close to minus 100F (minus 73.3C) on New Hampshire's Mount Washington meaning it vied for the world's coldest place.

Jaw-clenching temperatures hit throughout the Northeast of the country - Burlington, Vermont was at minus 1F (minus 18.3C) and a wind chill of minus 30 (minus 34.4C), while both Philadelphia and New York were shivering at 8F (minus 13.3C).