Notre Dame Cathedral, one of the most beloved Gothic landmarks in Paris and Europe, is engulfed by flames this evening as a major fire broke out on the cathedral’s roof. As detailed by The Guardian, it is believed that the fire may be linked to restoration works currently underway. Video footage below shows the iconic spire of the 850-year-old Gothic building collapsing, with fears that the cathedral's wooden interior is under threat. Reuters is also reporting that the entire roof of the cathedral has collapsed, while the cathedral's three medieval rose windows have reportedly exploded in the intense heat. In a glimmer of hope, fire officials have confirmed that the main structure has been "saved and preserved."