Around 30 passengers were evacuated from Simonis metro station in Brussels on Saturday evening after reports of breathing difficulties and irritation inside the station. Emergency services responded quickly as several people reported feeling unwell shortly after 21:30 local time.
According to the Brussels fire brigade, emergency teams assessed around 15 passengers on site. Two individuals were taken to hospital for further medical care, while the remaining passengers were treated at the scene.
Authorities believe the incident may have been caused by the use of pepper spray inside the metro station, which spread through the enclosed space and affected commuters. Investigators are currently working to confirm the exact cause.
The Brussels Metro station was immediately evacuated as a precaution. Metro services at Simonis were suspended while emergency crews secured the area and assessed air quality conditions.
A large emergency response was deployed to manage the situation. This included multiple ambulances, mobile medical units, and support teams from local fire services. Police also established a security perimeter around the station to control access and ensure public safety.
The Brussels-West Police Zone worked alongside federal police units during the response. The Red Cross also assisted by providing medical support to affected passengers.
Officials said the situation was brought under control relatively quickly, and the station was reopened at around 22:45 after safety checks were completed.
Preliminary findings based on CCTV footage suggest that pepper spray was discharged inside the station, leading to the spread of irritants through ventilation and confined underground spaces.
Investigators are still working to determine how the substance was released and whether it was intentional or accidental. No arrests have been announced at this stage.
Authorities said that enclosed transport hubs are particularly vulnerable to such incidents due to limited airflow, which can quickly spread irritants and affect a large number of people.
Emergency services reminded the public to report any suspicious activity in metro stations and to seek assistance immediately if they experience symptoms such as difficulty breathing or eye irritation.
The investigation into the incident remains ongoing, with officials expected to release further updates once more evidence is reviewed.
