Chemical leak at school in Koropi causes mass medical evacuations

On Wednesday, November 11, 2026, a chemical leak occurred at the Kaisaris School located at the intersection of Lampron and Lysimachou streets in Koropi, Greece. The incident took place during routine maintenance work on the school's swimming pool, resulting in hazardous gas exposure for students and staff. Emergency services, including the Fire Department and seven ambulances from the National Centre for Emergency Care (EKAB), were dispatched to the site to manage the crisis.

According to reports, 13 students were transported to the Aglaia Kyriakou Children’s Hospital, and one additional student was released to their mother after a formal declaration. The number of affected adults varies between reports: Cyprus Times states that 13 staff members were taken to Sotiria Hospital, while ink.com reports that seven adults were hospitalized there. Both sources agree that two maintenance workers involved in the pool work were transported to the Koropi Health Centre. The elementary school and kindergarten were evacuated as a precautionary measure.

The Fire Department has launched an investigation to determine the exact circumstances and causes of the chemical leak. Authorities are currently reviewing the safety procedures followed during the pool maintenance to understand how the chemical products were utilized.