A total of 21 station closures will affect Paris metro lines today, at the request of the city's prefectural police.
Paris is bracing for an afternoon demonstration that police expect will draw tens of thousands, with metro stations set to close before the procession begins.
A police source told AFP that between 30,000 and 60,000 people were expected in Paris, including possibly"300 to 600 high-risk individuals.".
Stations along the route of the procession, between Filles du Calvaire and Reuilly-Diderot, will also be closed.
From the France 24 office in Issy-les-Moulineaux, the sound of the helicopters that will monitor this afternoon's demonstration could already be heard.
Helicopters and drones monitoring protests are both a sight and a sound that have become almost commonplace since October 17.
Some demonstrators will be protesting against a new bill in parliament to grant police who use their weapons a presumption of legitimate self-defence.
They say it would make holding security forces accountable even harder in a country where most cases of alleged police brutality rarely reach a criminal court.
The plan is intended to allow families with children to leave the march before the dispersal and to avoid the clashes with police that often occur during dispersals.