Firefighters say it started on the second floor of one apartment. They had to cut open the roof for ventilation.
No one was home at the time. In fact, one of the people who lived there came home to find crews working on his apartment.
"I haven't been able to go back in yet," Aaron Burroughs, Resident of a burned apartment, said. "I don't know what's damaged or what can be recovered."
"There was a little bit of smoke and water damage to the adjacent apartments, but the fire was contained to one apartment," Chief Seth Lasker, Burlington Fire Department, said.
The fire marshal ruled the fire accidental. He says the whole building can't be occupied right now.
The Red Cross is helping residents find temporary housing.
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