The roof of the Notre Dame Cathedral in Paris (France) is burning. The images that TV’s are broadcasting show high flames and no real possibility to extinguish them. The roof is too high from the ground to let firefighters try to extinguish the fire from the external part of the building and inside the building perhaps the conditions do not allow any significative possibility to limit damages.
At the moment, the cause of the fire seems to be identified in the ongoing maintenance or restoration works.
If this were the reason, it would be extremely serious that a historic building of such importance was the object of works without the necessary caution in limiting the risk of fire. it is universally known, in fact, that fires due to maintenance or restoration works are among the most disastrous for cultural buildings and that the most serious damages suffered by cultural heritage are due precisely to fires.