The Hague, Netherlands – A strange odor emanating from sewer work in the center of The Hague caused multiple people to fall ill and led to the evacuation of a shopping arcade on Wednesday, February 25, 2026. Emergency services responded to reports of individuals experiencing nausea, dizziness, and respiratory irritation in the area surrounding De Passage, a prominent shopping center in the city center. Although the exact cause of the odor remains under investigation, authorities are focusing on the possibility of a gas leak or the release of unusual fumes during ongoing maintenance of the city’s sewer system.
The incident began around midday when reports started flooding in of people feeling unwell in and around De Passage. Witnesses described a pungent, acrid smell that quickly spread through the arcade, prompting shoppers and staff to evacuate. Firefighters and paramedics were dispatched to the scene, and several individuals were treated for minor symptoms. As of late Wednesday afternoon, no serious injuries have been reported, but authorities are continuing to monitor the situation closely. The affected area has been cordoned off to allow for thorough investigation and to ensure public safety. This incident highlights the potential risks associated with large-scale infrastructure projects in densely populated urban areas and the importance of rapid response protocols when unexpected events occur.
Investigation Focuses on Sewer Work and Potential Gas Leak
Initial investigations are centering on recent sewer maintenance work being conducted in the vicinity of De Passage. According to a statement released by the municipality of The Hague, the work involves the cleaning and repair of underground pipes. However, officials have not yet confirmed whether the odor is directly linked to this activity. “We are investigating all possible causes, and at this stage, we cannot rule out a connection to the sewer work,” said a spokesperson for the city’s emergency services. NU reports that the fire department is conducting air quality tests to identify the source and composition of the odor.
The possibility of a gas leak is likewise being considered. Although the area is not directly served by high-pressure gas lines, authorities are examining whether the sewer work may have inadvertently damaged a lower-pressure gas pipe. De Telegraaf reported that emergency services initially suspected a gas leak, prompting a wider search of the surrounding area. However, no significant gas leaks have been detected so far.
Impact on Local Businesses and Residents
The evacuation of De Passage has caused significant disruption to local businesses. Shops and restaurants within the arcade were forced to close for several hours, resulting in lost revenue. The closure also affected commuters and shoppers who rely on the arcade as a thoroughfare. NOS reported that the arcade was temporarily sealed off while authorities investigated the source of the smell. The municipality has pledged to provide support to affected businesses and to expedite the reopening of De Passage as soon as it is safe to do so.
Residents living near De Passage were also advised to keep their windows closed and to avoid the area if possible. The local health authority issued a statement urging anyone experiencing symptoms such as nausea, dizziness, or respiratory irritation to seek medical attention. The incident has raised concerns among residents about the safety of infrastructure projects in urban areas and the potential for unforeseen consequences. The municipality has assured residents that it is taking all necessary precautions to prevent similar incidents from occurring in the future.
Public Response and Social Media Activity
The incident quickly gained traction on social media, with residents and visitors sharing their experiences and concerns online. The hashtag #DenHaag began trending on X (formerly Twitter) as people posted updates and photos of the evacuation. Many users expressed frustration over the disruption caused by the closure of De Passage, while others voiced concerns about the potential health risks associated with the mysterious odor. Omroep West highlighted the widespread discussion on social media, noting that many users were sharing information and offering support to those affected.
The incident also sparked a broader conversation about the state of infrastructure in The Hague and the require for increased investment in maintenance and upgrades. Some social media users pointed to previous incidents of infrastructure failures in the city, arguing that the municipality has been leisurely to address these issues. Others called for greater transparency and accountability in the planning and execution of infrastructure projects. The incident serves as a reminder of the importance of maintaining critical infrastructure and ensuring the safety of residents and visitors.
Ongoing Monitoring and Future Precautions
As of Wednesday evening, the source of the odor remains unidentified. Authorities are continuing to conduct air quality tests and to investigate the possibility of a connection to the sewer work. The affected area will remain cordoned off until it is deemed safe for public access. The municipality has announced that it will be conducting a thorough review of its infrastructure maintenance procedures to identify any potential weaknesses and to prevent similar incidents from occurring in the future. This review will include an assessment of the city’s emergency response protocols and a review of safety measures for infrastructure projects in densely populated areas.
Officials have stated that they will provide regular updates to the public as the investigation progresses. Residents and businesses are encouraged to stay informed by checking the municipality’s website and social media channels for the latest information. The incident underscores the importance of proactive infrastructure management and the need for a coordinated response to unexpected events. The municipality is committed to ensuring the safety and well-being of its residents and visitors and will capture all necessary steps to address the concerns raised by this incident.
The next update from the municipality regarding the investigation is expected on Thursday, February 26, 2026, at 10:00 AM CET. We encourage readers to share their thoughts and experiences in the comments section below.