Icy weather conditions have been causing severe disruption to parts of the United States.
Snow and ice storms have been followed by plummeting temperatures across the south, mid-Atlantic region and north-east.
It left stunning scenes in places like Niagara Falls - but caused problems for people on the roads and in their homes.
Forecasters are warning the weather could be even colder later in the week.
Ben Bland reports.
http://www.bbc.com/news/world-us-canada-31548925