ERIC MILLER/REUTERS
Temperatures have plunged across North America, turning what had been a relatively mild winter into a bitterly cold one.
ERIC MILLER/REUTERS
The maximum temperature in Minneapolis on Monday 21 January was a bitter minus 19C (-2F). The biting wind ensured that the weather felt colder still.
Owen Watson/Al Jazeera
The thick ice on the plants shows that it's clearly very cold at Niagara Falls in Canada too.
Owen Watson/Al Jazeera
This tourist still looks cold despite his two coats and panda balaclava.
JOHN GRESS/REUTERS
On Tuesday night, a huge fire engulfed a warehouse in Chicago. Fire department officials said it is the biggest fire the department has had to battle in years.
JOHN GRESS/REUTERS
As firefighters poured water on the flames, the bitter conditions quickly turned the water to ice.
JOHN GRESS/REUTERS
Huge icicles formed on the building, and everything around it was encased in ice.
JOHN GRESS/REUTERS
One-third of all firefighters in Chicago were on the scene at one point or another trying to put out the flames.
Julio Cortez/AP
In trailer parks, like this one in Union Beach, New Jersey, residents are using straw to insulate their homes. Some people are still living in temporary accommodation after the storm Sandy hit the region.
Dale Gerhard/AP
The shoreline along the Delaware Bay in New Jersey is buried under thick ice.
JUSTIN LANE/EPA
Temperatures dropped below freezing in New York on Monday 21 January, and have remained below freezing ever since.
DON EMMERT/AFP/Getty Images
The strong winds ensured the weather felt even colder than it was. The maximum temperature in New York on Monday was -7C, but it felt more like -17C.
SHANNON STAPLETON/Reuters
The cold weather is expected to gradually ease over the weekend, with temperatures perhaps just nudging above freezing in New York on Sunday.