Updated

Investigators have determined that the cause of a massive, 10-alarm fire in early December was the careless disposal of smoking material.

The blaze, which struck on Dec. 3, damaged 18 buildings and displaced more than 100 residents. It burned for almost the entire day.

Authorities said the fire started in recycling bins containing construction debris.

“It was like nothing I had ever seen or imagined,” Nadia Mohammad, a woman who was forced to grab her toddler and evacuate from the fire, said.

Criminal charges have not yet been filed, but the investigation remains open.

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