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The city of Nice in France will impose a curfew beginning Saturday night to stop the spread of coronavirus.

Bernard Gonzalez, prefect of the Alpes-Maritimes, told CNN affiliate BFM TV the curfew will be imposed to “stop the gathering of people in the streets.”

“All who need to circulate can circulate: health professionals that need to keep moving around, as well as taxis,” Gonzalez said.

“But this is essentially to stop gatherings of people in the streets, even tonight in the center of Nice we are still seeing gatherings of young people. "

Gonzalez added the curfew will start at 11 p.m. local time (6 p.m. ET) and run until 5 a.m. (12 a.m. ET).