The Arctic front sweeping across the United States has reportedly got so cold that the small town of Hell in Michigan has "literally frozen over".
According to Bloomberg News reporter, Derek Wallbank, temperatures have reached as low as -13C, with a wind chill of -33C.
As much of the US experiences a dangerous and severe cold spell, does the UK have anything to worry about?
As the US battles sub-zero temperatures, ITV News Washington correspondent Robert Moore illustrates just how cold it is in Minnesota.
Leaders across America are urging residents to stay in their homes as "polar vortex" batters the east coast after snowstorm Hercules.