Candidates sitting for the Kenya Certificate of Secondary Education (KCSE) examinations are among 26 people arrested at a private centre in St Theresa's Boys Primary school, where 35 phones were seized by police.
The Head of the Directorate for Criminal Investigations (DCI) in Starehe and Kamukunji Sub Counties Martin Mbaya, said 26 of the mobile phones had been identified with the owners.
He said detectives were carrying out further investigations to establish the owners of the nine mobile phones seized at the Examinations center where students were trying to cheat in the ongoing examinations.
154 private candidates are registered for the 2019 KCSE examinations at the centre.
Mbaya said the officers administering the examinations discovered that the students were receiving answers, real time, from an unknown source during Chemistry Paper II examinations.
"Investigations will continue to establish the source of the communications with the candidates and those behind the racket," Mbaya noted.
He said the 26 will be taken to court in connection offences on examinations malpractice.
The incident followed the arrest of seven people who were arrested, while impersonating KCSE candidates in Kisii, in an elaborate cheating scheme.
Education Cabinet Secretary George Magoha stated, that the plot was part of a wider scheme to manipulate the ongoing examinations in Nyanza region.