A winter snow storm is causing chaos in Canada and north-eastern US states, bringing up to 60cm of snow in some parts.
In Quebec City in Canada, the temperature dropped as low as -38C.
Authorities there have warned residents to remain indoors for their own safety and to keep roads clear for snow removal.
In New York City, all public schools were closed on Friday and people ordered to stay at home if they can.
In the neighbouring states of Connecticut, Massachusetts and New Jersey, people were also asked to avoid non-essential travel.
The weather has caused major disruption to travel with more than 4,000 flights cancelled in the past few days.
A number of people have died as a result of the weather and both New York and New Jersey have declared state of emergencies.