Education Cabinet Secretary Jacob Kaimenyi has said five national schools had candidates who were involved in irregularities during the Kenya Certificate of Secondary Education examinations.
While releasing the KCSE results on Tuesday, Mr Kaimenyi said 2,975 candidates committed exam irregularities countrywide.
He said 209 students were caught with unauthorised materials, 179 were found with mobile phones in the examination rooms while 20 impersonated candidates.
Mr Kaimenyi said the overall performance for 2014 candidates improved compared with the 2013 results.
A total of 3,073 candidates scored A in 2014 compared with 2,722 in 2013.
The CS said 149,717 candidates scored C+ and above.