Those fires originate only in part from a lack of regular cleaning.
It was later discovered that the fire originated due to a short circuit.
According to the arson investigation, the fire originated inside building 74, which was a sign shop.
The fire originated in a corner apartment, at the opposite end from the stairwell.
Other residents recalled hearing screams coming from the floor where the fire originated.
The fire originated in the upper level of the school.
"There's absolutely nothing left in the apartment where the fire originated."
They said they could not yet be certain where the fire originated.
"The fire originated in the cellar area and extended up."
The fire had originated from there, she saw instantly.