Millions of people across the United States and Canada spent Christmas Day hunkered down against freezing conditions as Winter Storm Elliott continued to devastate vast swathes of North America. The deadly storm has left many without power and trapped inside their homes, and has disrupted thousands of flights.
Temperatures dropped to as low as -40C in some places, while the scope of the storm has been nearly unprecedented, stretching from the Great Lakes to the Rio Grande along the border with Mexico.
