A protective sheet is being rolled over the burnt roof of Notre Dame Cathedral to prevent rain damaging the building further.
Showers and heavy downpours have been forecast for the French capital this week.
But the tarpaulin will only be a temporary measure until a more permanent solution is built.
Oliver Whitfield-Miocic reports from Paris:

Canada PM Carney strongly opposes US tariffs over Greenland
Trump links Greenland threat to Nobel Peace Prize snub, EU prepares to retaliate
Israel orders Gaza families to move in first forced evacuation since ceasefire
Rescue workers clearing Karachi inferno ruins, 63 missing feared dead
Blast kills seven at Chinese-run restaurant in Afghan capital
