Investigators believe that the most likely cause of the Notre Dame Cathedral fire is an electrical short-circuit, a French judicial police official said on Thursday.
A day before the Le Parisien newspaper reported, citing a source, that investigators "raise questions about the lifting mechanisms used in the repair work" considering a short circuit as the possible cause of the fire.
In the meantime, France's Heritage Foundation, which launched a nationwide fundraising campaign for the restoration of the landmark in the wake of the tragedy, announced that it collected $15 million to rebuild the cathedral.
The total amount pledged has already reached $1 billion. Many companies, including L'Oreal, the world's largest cosmetics group, LVMH luxury goods company and the Artemis holding company, as well as prominent businessmen, pledged large sums of money for the restoration of the famous cathedral.