The Kenya National Examination Council-KNEC has deregistered three more KCSE candidates over exam malpractices.
Speaking on a local television Channel Wednesday morning, KNEC Chairman Professor George Magoha said two of the students were arrested with cell phones in North Eastern region while the third candidate was arrested in a school in Western region.
According to the KNEC boss, cell phones confiscated from the students were kept while still on, then someone started sending answers though WhatsApp before calling at the end demanding payment.
Magoha said upon investigations by police, the phone signals were traced to some universities and culprits arrested.
Magoha further disclosed that over 20 centre managers have also been arrested for abetting cheating.
He said the school principals were opening exam papers before time and aiding in the smuggling of mobile phones in exam rooms.
The latest cases bring to seven, the number of candidates discontinued from sitting the exam for malpractices.
On Monday, KNEC deregistered four candidates after they were caught with foreign material and documentation.
Three cases were reported in Garissa while the other was reported in Nairobi when students sat Mathematics Paper 2.