A state of emergency has been declared in France, and President Emmanuel Macron has announced a curfew between 9pm and 6am for the areas worst-affected by coronavirus.
Ile-de-France and eight metropolitan areas - including Grenoble, Lille, Lyon, Aix-Marseille, Saint Etienne and Toulouse - will face the curfews for four weeks.
Speaking on French television, Mr Macron said the situation was "worrying" but the country had not yet "lost control" of the pandemic.
He did, however, say the country was in a second wave.
He went on to say that anyone breaking the curfew rules would be fined.
The French government earlier said the public health state of emergency will begin at midnight on Friday.
In a statement, the government said COVID-19 was a disaster which endangered the health of the population and justified the adoption of strict measures.
Areas under the maximum alert level have already had to close bars and restaurants are operating under restricted hours.
The move comes as the number of people in hospital with coronavirus in France has risen to more than 9,100 for the first time since the end of June.