A hospital in Egypt's Nile Delta governorate of Sharquiya announced on Sunday the death of a fourth patient who received dialysis treatment at the Dirb Negm Hospital earlier this month.
Prosecutors ordered an autopsy on the 38-year-old Heba Tantawy, who passed away on Sunday.
Last week, three people died and 13 others fell into a coma after receiving dialysis treatment at the hospital.
Following the incident, the health ministry announced that the hospital was under investigation by the prosecution, who were reviewing the details of the incident.
The prosecution team seized all of the equipment and tools and detained 15 doctors, employees, and maintenance workers at the Darb Negb hospital's dialysis unit as part of the investigation.
According to the latest hospital reports, 12 remaining patients are still recovering in different hospitals across the Sharqiya governorate.