It’s bitterly cold across many parts of the US right now, with temperatures plummeting as low as -38C in certain areas.
The National Weather Service issued wind chill advisories covering a vast area from south Texas all the way to Canada as both countries are getting to grips with dangerously low temperatures.
Here are some photos that show just how bone-chillingly cold it is in the US and Canada.
1. Niagara Falls, which sits on the US-Canada border, looks like a scene from Disney’s Frozen, following an arctic blast.
8. Meanwhile the deep freeze in Erie, Pennsylvania, which picked up almost seven feet of snow since Christmas Eve, has led to some residents getting their skis out.