The man who was operated on was suffering a brain swelling that did not require surgery: AFP
Four Kenyan medics have been suspended after cutting open the skull of the wrong patient at a hospital in Nairobi.
One patient needed surgery for a blood clot on the brain, the other only non-invasive treatment for swelling.
But a horrifying mix-up of identification tags saw the wrong man operated on, reports say, reports BBC.
The doctors did not realise their mistake until "hours into the surgery, when they discovered there was no blood clot", the Daily Nation reported.
The head of the Kenyatta National Hospital said the patient was "in recovery and progressing well" and an investigation is under way.
The board regulating medical practice says such a mix-up is a first in the country. It has demanded a report from the hospital and plans to hold a hearing.
Social media users have expressed shock that such an incident could have been allowed to happen.
It comes only six weeks after the health minister ordered an investigation into claims new mothers were sexually assaulted at the same hospital.