Firefighters were called to the 300 block of North Front Street around 8:40 p.m. on Wednesday, June 24, according to county dispatchers.
Heavy flames and thick black smoke poured from the building as crews launched an aggressive attack from the ground while multiple aerial ladder trucks poured water onto the fire from above.
Officials said all three floors of the commercial building were burning as firefighters worked urgently to keep the flames from spreading to neighboring buildings.
PPL shut off electricity in the area, leaving more than 3,000 customers without power.
Residents in the surrounding area were advised to shelter in place until further notice.
Anyone living in the 300 block of North Front Street was asked to leave their homes through their backyards, fire officials told WFMZ.
There was no immediate word on what caused the fire or whether anyone had been injured.
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