At least three people have been killed and hundreds of thousands were without power as a heavy snowstorm slammed into south-eastern US states.
Snow, sleet and freezing rain battered states from Georgia to West Virginia with temperatures expected to plummet further, bringing more treacherous conditions.
The storm has been blamed for at least three deaths in North Carolina and a state of emergency has been declared in the region amid the extreme weather.
Thousands of flights were cancelled across the region, and scores of schools, businesses and government offices were closed as the severe conditions worsened on Monday.
Snowfall totals topped 20 inches (50 centimetres) in some areas of the western part of the state, according to the National Weather Service.
Flight cancellations and delays continued at Charlotte Douglas International Airport, the sixth busiest airport in the country.