An Administration Police officer in Tigania East was on Monday shot dead by his colleague after the two engaged in an argument.
According to the police reports, Silvester Kasongo died instantly after corporal Stephen Ntiga shot him in the chest three times using a G3 rifle at their Gambela AP camp.
Ntiga was then arrested and detained at the Tigania Police Station while police investigate the cause of the quarrel.
In the recent past, cases of police killings and suicide have been on the rise.
On October 10, a Recce Squad officer in Ruiru shot himself dead after firing 53 bullets at his girlfriend after a disagreement.
Another officer trained in the US last Friday shot dead victim Nthenya Katheka after they were involved in a love triangle quarrel.