Two more French unions, CGT and FSU, called for fresh strikes on Thursday to press for higher wages.
Rallies have been planned in Cherbourg, Granville and Saint-Lo cities of the northern region of Normandy, according to a statement on their websites.
The unions have held a string of strikes in the last few weeks in order to demand a 10 percent hike in wages for public sector employees and a general adjustment to account for inflation.
In September 2022, the inflation rate in France was 5.6 percent year-on-year.