Niagara Falls has partially frozen for the second time this year, as North America suffers another extreme cold spell. The area experienced bitterly cold temperatures with a low of -10 degrees Celsius overnight.

blue ice
The partially frozen falls are illuminated during a light show
light show
A light show transforms ice formations into a fantastical landscape
frozen tourist
light 2
frozen falls
January Niagara
Niagara froze earlier this year as the 'polar vortex' brought record low temperatures to much of North America. The picture above was taken on January 8, 2014