A severed human head has been sent to the boss of the National Police Service Commission in Kenya.
A box containing the head and two human hands covered in blood also had the message: "Kavuludi, you are next". Police said they interpret it as a death threat.
The BBC reports Johnston Kavuludi was appointed last year to reform the police force.
According to the Daily Nation newspaper, the box was deposited in a flower bed outside the commission's offices in Nairobi on Thursday afternoon.