Polar vortex death toll rises to 21 in US
Polar vortex death toll rises to 21 in US

At least 21 people have died in one of the worst cold snaps to hit the US Midwest in decades, – BBC reported.

According to BBC, ninety million people – a third of the US – have seen temperatures of -17C (0F) or below. Some 250 million Americans overall have experienced the “polar vortex” conditions.

Hospitals have been treating patients reporting frostbite as parts of the country ground to a halt.

Temperatures are expected to swing to above average over the weekend.  By the end of the weekend, Chicago could see temperatures as high as 10C.