foto: Smoke and flames rise during a fire at the landmark Notre-Dame Cathedral in central Paris on April 15, 2019, potentially involving renovation works being carried out at the site, the fire service said. (Photo: Pierre Galey/AFP/Getty Images)
Authorities have not speculated about a cause of the fire. The building is under renovation and France 24, an international news channel, reported that the entire roof of the cathedral had collapsed. The outlet reported that pieces of the building are continuing to burn and fall and the fire "is not under control at all."
President Donald Trump weighed in on the situation on Twitter, tweeting that it was "so horrible to watch the massive fire" and that officials "must act quickly!"