EMBED >More News Videos Drone 6 was over the ruins of Bridget Foy's restaurant on South Street after a fire on October 25, 2017.

EMBED >More News Videos Fire breaks out at South Street restaurant. Katherine Scott reports during Action News at 4:30 a.m. on October 25, 2017.

QUEEN VILLAGE (WPVI) -- The dismantling of the remnants of a popular South Street restaurant began Wednesday afternoon following a fire that left the establishment in ruins.What remained of Bridget Foy's was in danger of collapsing, authorities said, preventing investigators from getting into the basement to continue their search for a cause.Neighbors and regulars watched helplessly as crews tore into what was left of the building."This was our spot, this was our 'Cheers,'" said Cheryl Henderson. "It's the family."Bridget Foy herself, whose father opened the business in 1978, was at the scene to console regulars and watch the demolition of the family business.The fire began around 1:15 a.m. and more than 100 firefighters responded to the scene.They arrived to find heavy smoke in the basement and that smoke could be seen from blocks away."I parked my car, was able to look and see smoke coming everywhere," said cab driver Simon Mrebti."There was smoke billowing out all the windows," said Mike Wagner.The restaurant closes at 10 p.m. on Tuesdays and was shut down at the time of the fire. Officials tell Action News there was no one inside the restaurant when the fire began.Firefighters began with an interior attack on the flames but had to pull out of the building because the situation became too dangerous inside.Crews then worked to contain the flames from spreading to surrounding buildings, but some were still filled with smoke and water.The fire was placed under control around 4 a.m. but flare-ups continued long afterward.Passersby were stunned at the damage to this beloved neighborhood staple."I'm literally at a loss for words," said Seember Ityokumbul."It's a place that's been there, an icon on the corner since God knows how long. To see it like this is pretty bad," said Sam Paul."It's just a shock. This place has been around for so long, I don't know what's going to happen without it," said Leeanne Andrijischym.Three firefighters were taken to the hospital as a precaution.The Red Cross is assisting those affected the fire.Red Paw Relief said two dogs from a nearby groomer's died due to the fire.South Street Headhouse District released the following statement on Facebook:----------