Updated story
More than 200 Chicago firefighters were tasked Tuesday evening with battling a five-alarm blaze at a vacant warehouse in the city's Bridgeport neighborhood -- and, by Wednesday, were left with a stunningly icy aftermath.
The fire at the former Harris Marcus Group building, located at 3757 S. Ashland Ave., was spotted by a fire chief just after 9 p.m. Tuesday, according to the Chicago Tribune. As of Wednesday morning, firefighters were still working to put out hot spots and flares in the massive blaze that the department is calling the largest fire they've faced "in many years."
(Scroll down to view photos of the warehouse in its current state as of Wednesday afternoon: a giant "ice cube.")
At its height, the fire could be seen from as far away as the Willis Tower nearly five miles away and one-third of the city's firefighters were on the scene of the blaze at some point, according to ABC Chicago.
Due to some of the coldest temperatures the city has seen in two years, the warehouse was largely covered in ice Wednesday morning, turning the building into a massive "ice cube," fire department spokesman Larry Langford told CBS Chicago.
The fire attracted dozens of onlookers despite the frigid temperatures, according to DNAinfo Chicago.

Nobody was inside the building, but one firefighter was taken to an area hospital after suffering a minor back injury. The fire's cause is under investigation.
Chicago Warehouse Fire Now An 'Ice Palace'
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