The incident happened barely a few hours after a newly deployed Commissioner of Police, Mr Chris Owolabi, assumed duty in the state.
According to an eyewitness, the victims were killed inside an abandoned filling station close to the police station.
It was gathered that the police officers lost their lives while trying to prevent the unknown gunmen from gaining entrance to the station.
He said: “When other police officers on duty noticed an unusual movement of the unknown gunmen, the officers took to their heels. After freeing the detainees, the gunmen burnt down the police station.”