The death toll from a cyclone which hit France's Indian Ocean territory of Mayotte on Saturday is likely to be several hundred, a local official has warned.

Entire communities were flattened when Cyclone Chido made landfall, causing wind gusts of more than 225km/h (140mph).

The last reported death toll stood at 11 but speaking to local media, the island's prefect Francois-Xavier Bieuville said it will "definitely be several hundred" once the damage is fully assessed, adding it was possible that a "few thousand people had died".

French President Emmanuel Macron earlier said France would "be there" for the people of Mayotte and was sending 250 rescue workers.