Gauteng education MEC Panyaza Lesufi launched the inquiry earlier this month when reports of the incident emerged.
The MEC visited the families of the victims and perpetrators where he made known the findings of the report.
The report found that the girls aged seven, eight and nine were raped by the boys aged 10 and 14 in June.
It’s understood the eight year old girl invited the two others to play outside of the school yard and rather in the school field behind the school, on the afternoon of 11 June.
The two boys who were party to the conversation joined them.
“There was a discussion by all after which they moved to an even more secluded area. The boys tied the girls’ hands together with a long rope, then undressed them removing the lower half of their clothes,” said Lesufi.
The girls were raped by the two boys.
However, it cannot be concluded as to which boy raped which girl.
The report found the department should initiate disciplinary action against the principal, who knew about the incident for twelve days before reporting it to police.
Lesufi confirmed he has been served with a notice of intention to suspend him and has been given time to respond.
Lesufi said continued counselling and psychological support will be offered to all the children involved including their parents.