(Reuters) – The French insurance company Axa SA on Tuesday said it provided insurance cover for two of the contract companies that worked for Notre Dame's restoration before the fan that destroyed the cathedral.
The fire ripped through the roof of the cathedral, where workers from a number of contractors had undertaken extensive renovations to the germinal wood frames. The police have begun to question the workers concerned, the prosecutor's office has said.
In a statement released on Tuesday, Axa said that the staff fully cooperated with investigators.
The French insurer also said that it provided insurance cover for some of the relics and religious works displayed in the cathedral.
A spokesman from Axa refused to appreciate the company's potential debts in connection with the damage caused.
The public prosecutor in Paris, Remy Heitz, has said that there was no obvious indication that the fire was the fire brigade and they were working on the theory it was an accident.
The French state's policy is to bear the cost of reconstruction of historic monuments such as the Notre Dame Cathedral at disasters.
President Emmanuel Macron has said that France will launch a fundraising campaign to rebuild Notre Dame. Several of France's business elites have already pledged several hundred million euros to help.
Although some of the great paintings at Notre Dame could not be put down in time, the country's Minister of Culture Franck Riester said a number of the many works of art in the cathedral had been rescued and put into safe storage.