Eight people are dead after a blast of icy polar air brought dangerously low temperatures to the US Midwest.
The polar vortex related deaths have been reported since Saturday in Michigan, Iowa, Indiana, Illinois, Wisconsin and Minnesota.
Temperatures have dropped as low as -35C, and even the town of Hell in Michigan has frozen over.
Even the South Pole in Antarctica is warmer, with an expected low of minus -31C with wind chill.
In Detroit on Wednesday, a 70-year-old man was found dead on a residential street, a police spokeswoman said.
About 15 miles south in Ecorse, a former city councilman in his 70s and dressed only in sleepwear was also found dead the same day.
And the body of a University of Iowa student was found outside a campus building yesterday.
The death of Gerald Belz, a pre-med student, was believed to be weather-related.
Illinois State Police officers rescued 21 people stranded in a charter bus that broke down in sub-zero temperatures after the vehicle’s diesel fuel turned to gel in its engine.
More than a thousand flights, close to two-thirds of those scheduled, were canceled on Wednesday in or out of Chicago O’Hare and Chicago Midway international airports.
Amtrak canceled all trains in and out of the city too.
School classes were canceled for Wednesday and Thursday for students across the Midwest as police warned of the risk of accidents on icy highways.