
Jafari-Dolatabadi said on Thursday that two IAU officials, arrested on the day of the incident, are still in custody and police has also been asked to provide the prosecutor's office with its report soon.
He said technical failure of the bus was one of the causes of the incident and lack of necessary signs on the road should be added to the causes.
A bus was capsized in the campus of the IAU's Science and Research Faculty in Tehran on Tuesday, killing 10 and wounding 27 students.
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