A major fire broke out in the Notre Damne Cathedral in Paris last night. The fire destroyed the landmark’s roof and caused its spire to collapse before firefighters managed to put it out, 15 hours after it started.

The cause of the fire is not yet clear and Paris public prosecutor Rémy Heitz said his office had assigned 50 people to work on what he said would be a “long” and “complex” investigation.

Hundreds of millions of euro have been pledged to rebuild the building.

-Daniel Potter