Via twitter:My god just saw more pictures, huge flames as well as smoke. I'm not French, I'm not religious but its part of my culture too! Please I hope this gets under control quickly.
BBC reports it may be linked to renovations?
Fire at Paris’ Notre Dame cathedral was started by accident and is related to ongoing work, according to France 2, citing police. Either way it is terrible and a hideous blow to the symbolic heart of the city