September 18th Demonstration: First Clashes and Sabotage Foiled, Tensions Rise in Paris

In Marseille, the route and schedule of the demonstration called by the inter-union have been modified due to "the expected crowd," compared to the day of September 10, according to the organizers. These comments were relayed by Le Monde. On September 18, the demonstration will leave at 10:30 a.m. from the Vieux-Port and follow a route that will take in fewer of the shopping streets of central Marseille. "Mobile force units will react immediately in the event of overflows or uncontrolled gatherings," the prefecture warns.
According to a report from Le Figaro, 22 arrests have been made in Marseille alone since the beginning of the day. "Around a hundred people were stopped at the Terrasses du Port, a shopping center in the 2nd arrondissement," the daily newspaper reported.
Marylise Léon, head of the CFDT, says the union will provide "a secure framework" for the protests this Thursday. "I don't want threats of violence to be a deterrent to people who legitimately have something to say in the union protests," she says, however. She assures us that those responsible for the demonstrations will be "there," knowing they are "fully responsible."
"More than 200 demonstration sites" have been identified nationwide, according to CFDT General Secretary Marylise Léon, speaking to BFMTV. "The world of work cannot be the only contributor to the efforts that will be required in the construction of the budget," she also mentioned a "power struggle" with the new Prime Minister Sébastien Lecornu, and hopes "to be able to propose new directions and new measures."
"Since this morning, peaceful protesters have been gassed and assaulted. Why such a display of force? The union marches will be peaceful and festive. Perhaps there will be a few individuals who cause problems at the beginning or end of the procession, but there is no need for 80,000 police officers for that," declared CGT general secretary Sophie Binet on France Info this Thursday morning. She accused the decision-making Minister of the Interior, Bruno Retailleau, of "adding fuel to the fire."
Thirty people have been arrested in Toulouse, Best, and Marseille by the national police since this morning. The figures were broadcast at 8 a.m. and relayed by BFMTV.
For the First Secretary of the Socialist Party, "it's not useful to block (...) Every time we see a deterioration, every time we give the impression that we're looking for chaos, we're helping the government to despise this movement," Olivier Faure judged this Thursday morning on TF1. This was a reaction to the first clashes that occurred early this Thursday. "When there are picket lines, it's perfectly legitimate (...) On the other hand, when there's a violent demonstration (...) it's reprehensible," he concluded.
The Paris 1 Panthéon-Sorbonne University, Tolbiac campus (20th arrondissement), is blocked by around twenty students, reports the newspaper Le Figaro. "Garbage cans and bicycles are piled up in front of the doors of the Pierre Mendès France center," we learn, while the situation has calmed down in front of the Maurice Ravel high school, the students having received a message from the school asking them to go home.
Starting this Thursday morning, blockades are multiplying across the country. According to a report from Le Parisien, in Yvelines, a first blockade has been organized in Achères in front of the Siaap. This is the largest Seveso-classified wastewater treatment plant in Europe. "50 strikers are holding a filter barrier," the daily newspaper reports. While in Moselle, it is the ArcelorMittal company in Amnéville that is blocked.
"Two protest marches have entered the A57 and A50 at the eastern and western entrances to Toulon near Ollioules and the La Garde rest area," the Var prefect warned this Thursday morning. A slow-moving operation is indeed taking place, and "Union members from Force Ouvrière are present," BFMTV reported.
To the west, a procession of 27 vehicles stopped at exit 15 is reported, with journey times extending by 12 minutes compared to normal traffic conditions. To the east, a procession of 49 vehicles stopped at the Bigue interchange is taking shape, with traffic flowing smoothly, the prefecture reports.
In its 7 a.m. update, the national police reported 1,200 protesters present on the ground, 17 blockades, 2 unblockades, and two people arrested.
"The national police are intervening on the ring road, D183, in the Cusset sector of Villerbanne, to disperse a group of hostile individuals and restore traffic flow," announced the prefect of the Auvergne-Rhône-Alpes and Rhône regions, on the social network X.
According to a report in the newspaper Le Parisien, the first arrest has just taken place in Paris. In front of the Maurice Ravel high school (in the capital's 20th arrondissement), "around forty helmeted police officers faced around 200 protesters," and one of them was arrested at the scene of the demonstration.
The Interior Minister indicated that "blockade attempts" took place in the Paris region very early this Thursday morning, notably against bus depots in Aubervilliers and Saint-Denis. "We have already unblocked a certain number of blockades," he announced. He also thwarted a "sabotage attempt against a water network" in Martinique. The Vendée native particularly fears the presence of "radical elements," such as black blocs, who could join the movement and cause "risks of public disorder," he concluded.
In Brest, a gathering of around a hundred people is underway in the area of Rue Poullic al Lor and Cours Dajot. The Finistère prefect advises "people to avoid the affected areas and postpone their travel if possible."
#Demonstration ???? Update on September 18, 2025 at 7:00 a.m. on traffic conditions related to the demonstrations: - Brest: gathering of around a hundred individuals in the area of rue Poullic al Lor and cours Dajot. - Concarneau: group of around ten... pic.twitter.com/g9pdwI5OAo
This Thursday, September 18th, promises to be another day of massive social mobilization. Unions, angry professionals, and citizen movements are calling for people to take to the streets to voice their clear protest against the government's 2026 budget, which it accuses of imposing austerity measures on the French people. Following an initial day of protest on September 10th, this second meeting, structured around unions, could be more widely attended.
The unions, united in an inter-union body, have taken over from the "Block Everything" citizens' movement, which initiated the first rallies in early September. The CGT, CFDT, FO, CFE-CGC, CFTC, UNSA, FSU, and Solidaires are calling for a strike and demonstration this Thursday in France's largest cities. For now, the call to strike seems to be being heard, and then some. According to information from RTL gathered from intelligence services, between 600,000 and 900,000 people will demonstrate in the streets this Thursday, September 18. The mobilization could still grow. 250 demonstrations have already been declared across France. "We are in a new phase of protests and, given the imposed austerity budget, there is a good chance we won't stop there," warned Thierry Nier, general secretary of the CGT Cheminots union on RTL.
In addition to the protests, strikes are planned in many sectors, starting with the transport sector. SNCF and RATP will be particularly affected: several union organizations representing railway workers and employees of the Parisian public transport authority have filed strike notices. Disruptions are expected to be significant, particularly in the Île-de-France region.
The National Education sector will also be present, from primary schools to universities. Teachers, students, and high school students intend to denounce the decline in resources and working conditions deemed unsustainable. Among the health and paramedical professions, pharmacists and physiotherapists plan to close their establishments to raise awareness of the erosion of their income and the weakening of the reimbursement system. The highly mobilized energy sector is demanding wage increases and a reduction in VAT on electricity and gas. The promised actions will not be limited to work stoppages. The "Bloquons tout" collective has announced roadblocks and civil disobedience actions, intended to complement the union marches.
Beyond the practicalities, the demands converge around a few priorities: abandoning the toughest budget measures, defending pensions, fairer taxation, strengthening public services, and a general increase in wages and pensions. For the unions, it's about forcing a government accused of prioritizing balanced budgets over social cohesion.
This mobilization also represents a political test. The new Prime Minister, Sébastien Lecornu, inherits a budget largely prepared under François Bayrou. Some concessions have already been announced, such as the withdrawal of the abolition of public holidays, but this setback is considered insufficient by the protesters. If September 18, 2025, brings a massive turnout, pressure could increase on the government to amend its plan more broadly.
The success of this day, however, will depend on the true scale of the mobilization. On September 10, anger was expressed in a disparate manner, with citizen actions sometimes difficult to assess. This time, the unions hope to unite and give coherence to the protests. The government, for its part, is watching closely. Between the threat of paralysis and the need to deal with public opinion, the balance of power that will play out that day could well set the tone for the coming months of social unrest in France.
L'Internaute