Fears death toll will rise as weather warnings cover around 60% of the US
Millions of people have hunkered down to ride out the winter storm that has killed at least 34 people across the United States and is expected to claim more lives after trapping people inside houses and knocking out power to tens of thousands of homes and businesses.
The scope of the storm has been on a rarely seen scale, stretching from Canada down to the Rio Grande along the border with Mexico.