Parts of the US are facing their coldest weather so far this year on Monday, with arctic air expected through much of the week.
Several regions are under Cold Weather Alerts, as Americans battle icy weather on Martin Luther King Jr Day, a federal holiday.
Freezing temperatures also saw Donald Trump's inauguration in Washington DC move indoors - marking the first time it's being held inside since 1985.
Sally Patterson reports.
IN A snowstorm over
OUT SOC
DUR 44
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