"Garance has been downgraded to a strong tropical storm and the red alert has been lifted," the local prefecture said in a new update on X, advising the population to stay cautious and limit travel, Reuters reported.
The prefecture said 953 people were being sheltered in centres, 160,000 households were without electricity, and 310,0000 without water.
The cyclone on Friday made landfall in the north of the Indian Ocean island, which lies off Madagascar, blowing away roofs and cutting power and access to drinking water for many residents. It exited the southwest of the island several hours later, Meteo France weather agency said.