It works on two main versions – one is human error as a result of incorrectly estimated speed in relation to weather conditions, road and slope, the other is a sudden technical failure. This is what he said at a briefing for journalists surrounded by the prosecutor’s office in Haskovo, the reporter of the “Fokus” Agency reported. 19 people who were on the bus at the time of the accident were questioned. A 68-year-old woman from Burgas died. There are many wounded. “To date, a total of 19 people who were present in the bus, out of a total of 40, have been questioned. A comprehensive auto-technical and forensic medical examination has been ordered, several forensic medical examinations have been ordered in connection with the physical injuries caused to the many victims, one person has died , a 68-year-old woman with a permanent address in the city of Burgas”, the prosecutor’s office said.