Police have quizzed two teachers accused of tying up three pupils to a tree.
The incident happened at a Kenyan school – Thiru Primary School, in Laikipia County.
It was understood that the affected students were punished for truancy.
However, the incident sparked a public outrage.
Local television station NTV says the learners are aged between seven and 11 years:
Moses Muroki, a government official in the county, told journalists that the incident happened on 20 August.
He said the pupils were being punished for “truancy and delinquency”.
The county’s head of children services, Ezekiel Mwanza, said they apologised to the children, saying it was “unfortunate that our children could be subjected to such inhumane treatment”.