Water freezes over the Bryant Park Water Fountain in New York City

(Photo: Sarah Coffey / NBC News)

Read more on the Arctic air blanketing the United States.

Ice forms as firefighters battle Chicago’s worst blaze ‘in many years’

(Photo: NBC News)

A massive fire ripped through a warehouse in Chicago’s South Side Tuesday night, as firefighters were hampered by bone-chilling temperatures so low that water froze on their uniforms.

Photos taken at the scene showed flames towering above the abandoned warehouse as icicles formed on a fire hose.  One photo showed a firefighter with his jacket, hat and gloves caked in chunks of ice.

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Hot colors light up frozen sculptures at the Harbin ice festival

(Photo: Diego Azubel / EPA)

People slide down an ice slide at the 29th Harbin International Ice and Snow Festival in Harbin, China, on Jan. 6. The annual festival features hundreds of activities related to snow and ice. Picture made available Jan. 7.

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Ice hotel takes shape in Lapland

(Photo: Jonathan Nackstrand / AFP - Getty Images)

Work goes on at the construction site of the new Ice Hotel in the village of Jukkasjarvi in Swedish Lapland. The Ice Hotel, which gets a new design and is reconstructed every year, is dependent upon constant sub-freezing temperatures during construction and operation. 

Ice sales soar as heat continues on East Coast

Very hot temperatures are expected to extend from eastern Montana to the central and southern Plains and eastward to the Mid-Atlantic Wednesday, The Weather Channel reports, with highs of 95 to 105 degrees Fahrenheit.  A few areas of Kansas could approach 110 degrees.  

The ongoing heat wave means business is booming for companies selling ice, Getty Images reports.

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Federal agents: Help us identify endangered teen

Federal agents in Minnesota are pleading with the public to help identify a teen who may be in danger with other youths.

"We believe the pictured individual is at risk and may need law enforcement assistance, but may not be able to request it," ICE spokesman Shawn Neudauer told msnbc.com on Friday.

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(Source: MSN)