The West African Examinations Council (WAEC) says scripts of 22,270 candidates of the just-ended Basic Education Certificate Examination (BECE) in specific subjects are currently on hold as they are being investigated for reported cases of mass cheating.
According to WAEC, depending on the outcome of the investigations, the results of these candidates may either be cancelled or released.
The examination body has also cancelled the entire results of 41 school candidates and one private candidate for the possession of mobile phones in the examination hall.
In a statement on Thursday (9 November), WAEC also said it has cancelled the subject results of 312 school candidates and three private candidates.
According to the statement, the results were cancelled because the affected candidates took foreign materials such as prepared notes, text books and printed materials into the examination hall or colluded with other candidates.
A total of 600,900 candidates, comprising 300,404 males and 300,496 females from 18,993 participating schools entered for the school examination.
This figure includes 53 candidates with visual impairment, 366 with hearing impairment and 54 candidates with other special educational needs.
The examination was conducted at 2,137 centres across the country. Out of the total number, 3,366 candidates were absent.