“the administrative building, which dates from the end of the eighteenth century.”
Could be an issue.
It is always sad when old (and new) buildings are destroyed, but the origin of the fire could be something discussed here
https://twitter.com/search?q=%D0%BA%D0%BE%D1%80%D1%80%D1%83%D0%BF%D1%86%D0%B8%D1%8F