France School Lockdown: Lycée L’Essouriau Confines Students After Mortar Fireworks Near Campus

Students at Lycée L’Essouriau in Les Ulis, Essonne, France, were confined inside the school Friday afternoon after mortar fireworks were reportedly fired close to the school, prompting an intervention by security forces.

According to Le Parisien, the school’s students were confined for approximately one hour at the beginning of the afternoon on September 18, 2026. A security operation was deployed at the school while authorities investigated the circumstances surrounding the incident.

Key Details

Detail Information
School Lycée L’Essouriau
Location Les Ulis, Essonne, France
Date September 18, 2026
Incident Mortar fireworks fired near the school
Security Measure Students confined inside the school
Duration Approximately one hour
Police Response Security forces intervened
Investigation Opened to establish circumstances
Injuries No confirmed injuries reported in the available report

The incident significantly disrupted classes as students and staff remained inside the school while authorities responded. The Parisian report said the school has approximately 1,000 students.

The available reporting does not establish that the incident was a terrorist attack or that the school itself was specifically targeted. Authorities were investigating the circumstances surrounding the mortar-firework activity.

French higher-education and school authorities operate under national security procedures that include confinement and emergency-response measures when an incident presents a potential danger. The national Vigipirate framework also provides security guidance for educational institutions.

Further information about the investigation or any action against those responsible may be released by authorities as the case develops.