Pyeongchang Winter Olympics to be the coldest for 20 years

Fears for spectators and competitors as temperatures forecast to plummet to -15C

For years, the Winter Olympics were not that wintry and temperatures rarely dipped below freezing.

But this year's Games, which open on Friday in Pyeongchang, are expected to be the coldest in more than 20 years. Temperatures are forecast to plummet to -15C (5F) in the first few days and the mercury is unlikely to creep above freezing. Strong winds blowing through the venues will make it feel even colder.