France held a national day of mourning for Mayotte, its Indian Ocean territory devastated by a violent cyclone on Dec. 14, beginning in the morning on Monday with a minute of silence for the scores of residents left dead by the storm.

Visiting the French overseas department after the worst natural disaster in the Indian Ocean territory in 90 years, Macron also heard shocked and angry reports from residents and vowed to 'rebuild' France's poorest department.