Police officers check drivers' authorizations as the curfew took into effect in Paris, France, Jan. 16, 2021. Starting from Saturday, the country's 67 million inhabitants are ordered to stay at home from 6 p.m. to 6 a.m. for at least two weeks as the pandemic "is under control" but remains "worrying" because of the new rapidly spreading variants in France. (Photo by Aurelien Morissard/Xinhua)

Police officers check drivers' authorizations as the curfew took into effect in Paris, France, Jan. 16, 2021. Starting from Saturday, the country's 67 million inhabitants are ordered to stay at home from 6 p.m. to 6 a.m. for at least two weeks as the pandemic "is under control" but remains "worrying" because of the new rapidly spreading variants in France. (Photo by Aurelien Morissard/Xinhua)

Police officers check drivers' authorizations as the curfew took into effect in Paris, France, Jan. 16, 2021. Starting from Saturday, the country's 67 million inhabitants are ordered to stay at home from 6 p.m. to 6 a.m. for at least two weeks as the pandemic "is under control" but remains "worrying" because of the new rapidly spreading variants in France. (Photo by Aurelien Morissard/Xinhua)

Police officers check drivers' authorizations as the curfew took into effect in Paris, France, Jan. 16, 2021. Starting from Saturday, the country's 67 million inhabitants are ordered to stay at home from 6 p.m. to 6 a.m. for at least two weeks as the pandemic "is under control" but remains "worrying" because of the new rapidly spreading variants in France. (Photo by Aurelien Morissard/Xinhua)

Police officers check drivers' authorizations as the curfew took into effect in Paris, France, Jan. 16, 2021. Starting from Saturday, the country's 67 million inhabitants are ordered to stay at home from 6 p.m. to 6 a.m. for at least two weeks as the pandemic "is under control" but remains "worrying" because of the new rapidly spreading variants in France. (Photo by Aurelien Morissard/Xinhua)

The Place de la Concorde is almost empty a few minutes before the new curfew took into effect, in Paris, France, Jan. 16, 2021. Starting from Saturday, the country's 67 million inhabitants are ordered to stay at home from 6 p.m. to 6 a.m. for at least two weeks as the pandemic "is under control" but remains "worrying" because of the new rapidly spreading variants in France. (Photo by Aurelien Morissard/Xinhua)

Police officers check a car at a checkpoint during a nationwide curfew in Paris, France, Jan. 16, 2021. Starting from Saturday, the country's 67 million inhabitants are ordered to stay at home from 6 p.m. to 6 a.m. for at least two weeks as the pandemic "is under control" but remains "worrying" because of the new rapidly spreading variants in France. (Photo by Aurelien Morissard/Xinhua)