The lockdown was brought in at midday on Tuesday.
For the next two two weeks at least people will have to remain confined to their homes unless they need to leave for an essential reason (see below).
On Tuesday it appeared most Parisians were respecting the tight restrictions with the streets and tourist sites, usually thronged with people, left deserted.
Police were out in force to make sure people had valid reasons to be outside.
The deserted Champs de Mars on MArch 17th 2020. AFP
The Champs Elysées without the shoppers. AFP
A man walks past the empty square at the Louvre Pyramid. AFP
A picture shows the empty Place de la Concorde in Paris, on March on 17, 2020,AFP
A man runs past the Sacre-Coeur Basilica (Sacred Heart) in Paris after a strict lockdown requiring most people in France to remain at home came into effect at midday on March 17, 2020. AFP
The deserted Tuileries Gardens in Paris on March 17th 2020. AFP
Paris police were out in force checking people's justification for being outside.
Under the rules police are able to hand out €38 fines to those deemed to be flouting the rules. Those fines could rise to €135.
The only reasons people are allowed to be out are for health appointments, work if they can't do it from home, exercise or to walk the dog, urgent family care or to shop for groceries.`
Those who leave the house will need to print and fill in an official form or copy it on a handwritten note in case they are stopped by police.