At one school, students demanded an undertaking from the principal that he would facilitate cheating in the examinations, she added.​​

BooksPolice have intensified efforts to end the unrest, arresting 125 students, a statement by the ministry said.

Three students have already been convicted.

“All boarding schools have been asked to double the number of teachers on duty over the next two weeks, with greater emphasis on surveillance of boarding facilities when students are attending evening preps,” the ministry said.