At least eight possible cases of the new Omicron variant have been detected.
The Directorate General of Health promises confirmation "as soon as possible" with the results of the sequencing.
It is likely that the variant is already circulating on the territory had declared Sunday the Minister of Health Olivier Véran.
According to the latest data from Public Health France, published on Monday, 9,860 patients are hospitalized on Monday due to a Covid-19 infection.
They were 9381 Sunday and 8338 a week ago, Monday November 22.
In the past 24 hours, 1,043 new admissions have been recorded, up from 224 on Sunday.
Among the hospitalized patients, 1,749 are in critical care (resuscitation, intensive care or continuous monitoring).
The day before they were 1632 and 1406 last Monday.
253 new admissions have been recorded in the past 24 hours, against 42 on Sunday.
Public health France has recorded 103 deaths in the last 24 hours.
This figure is usually higher on Mondays.