An aggrieved policeman shot his boss dead on Saturday night following his transfer from a construction site where he was deployed as a security guard for the workers.
The incident happened at their camp in Maralal, Samburu County in Kenya, Nation has reported.
Samburu County Police Commander, Karanja Muiruri, said the junior officer stormed the Police camp and opened fire on his boss, killing him instantly.
He said the suspect was arrested and disarmed immediately.
He added that the suspect will be arraigned once Police complete investigation.
A police officer based at the station, who sought anonymity because he is not authorised to speak, claimed that the suspect was enraged after he was transferred from a construction site that he had been manning.
Investigation into the incident has since commenced, the paper said.