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- "Investigators are expected to search through the fire-damaged cathedral for remains of cables, lights or parts of circuitry that might give clues," The Guardian reports.
The big picture: Several potential causes still linger — electrical lifts from the outside of the building, electrical wiring on the inside and cigarette butts found inside. Officials believe the cause was possibly a short circuit linked to renovation.
Institutions connected to the possible causes deny being responsible:
- The scaffolding company that worked on the roof says the lifts were well maintained.
- The cathedral's spokesperson says the electrical wiring was properly installed, per Reuters.
- Construction company Le Bras Freres confirmed its workers smoked cigarettes at the construction site, but deemed that cause impossible, its spokesperson told AP.