Key Takeaways
- A German-Turkish family of four died in an Istanbul hotel from suspected phosphine gas poisoning.
- The lethal gas is believed to have leaked from pesticides used for bedbug control.
- Aluminum phosphide, the suspected chemical, is banned for domestic use in Turkey but misuse continues.
A German-Turkish family of four has died in Istanbul from suspected chemical poisoning, with investigators pointing to lethal phosphine gas from pesticides used for bedbug control. The incident has raised serious concerns about the misuse of industrial chemicals in residential settings.
Investigation Shifts from Food Poisoning
Forensic analysis now indicates chemical poisoning as the probable cause, overturning initial suspicions of foodborne illness. The mother and two children died between November 13-14, followed by the father on November 17.
According to local newspaper Cumhuriyet, the initial report stated: “primarily, it is believed that they died as a result of chemical poisoning caused by the circumstances in the hotel where they were staying.” Further pathological, microbiological, toxicological and chemical analyses are pending.
Deadly Pesticide Misuse in Hotels
The evacuation of the Fatih district hotel revealed that pesticides used for bedbug control may have leaked into the family’s room through the ventilation system. While authorities haven’t confirmed this, it has highlighted the risks of improper chemical use.
The suspected agent is aluminum phosphide (AlP), which reacts with air moisture to release phosphine gas – lethal to humans. Early poisoning symptoms include vomiting or coughing blood, which the family reportedly experienced.
Expert Warns Against Domestic Use
Dr. Cavit Isik Yavuz, a public and environmental health doctor at Hacettepe University, explained that Turkish legislation prohibits AlP in public health areas like hotels and homes.
“According to Turkish legislation, AlP can be used as a plant protection product in storage facilities for products such as grain, wheat and corn, but not in areas defined as public health areas, such as homes, hotels and workplaces. The [Turkish] Ministry of Health supervises the use of biocides in areas defined as public health areas,” said Yavuz.
Global Pattern of Similar Tragedies
Turkey has witnessed previous AlP misuse deaths, including a 2023 incident where a mother and child died with 10 hospitalizations from bedbug control efforts. Similar cases were reported in 2024.
Internationally, a 2015 Canadian incident involving illegally imported AlP from Pakistan killed two children and hospitalized four family members during bedbug treatment.
Safe Bedbug Control Methods
Health authorities recommend preventive measures rather than dangerous chemicals:
- Maintain clean, clutter-free bedrooms
- Regularly wash and dry bedding at high temperatures
- Vacuum beds, frames and mattresses frequently
- Steam infested areas at 50°C (120°F)
While folk remedies exist, scientific evidence supports proper hygiene and professional pest control using approved, human-safe pesticides.



