The idea to have an open-air homage to the Celtic saints of Europe was the brainchild of Philippe Abjean.

Trump says in a tweet that he offered "condolences from the People of the United States for the horrible and destructive fire."

We will continue to write our stories, in glass and in stone, perhaps, but also in how we live our lives with others and for others.

The president of France and the archbishop of Paris have vowed to rebuild Notre Dame Cathedral after a devastating fire.