Investigators suspect an electrical short-circuit was the most likely cause of the Notre Dame cathedral fire, according to a French judicial police official.
The official, who did not wish to be named, says investigators still do not have the green light to work in the cathedral or search in the rubble, for safety reasons.
Macron wants to rebuild the cathedral within five years - in time for the 2024 Olympics that Paris is hosting.
However experts say the vast scale of the work to be done could easily take 15 years, since it will take months, even years, just to figure out what should be done.
