Police say the shooting arose out of a domestic disturbance call involving a father and son about 1:30 p.m. Thursday.
They say officers had been confronting an adult male inside a house near 51st Street and Virginia Avenue.
Police say the man and an officer engaged in a physical altercation and the officer fatally shot him.
The name of the man killed and the officer involved in the shooting haven't been released yet.
Police say the officer was taken to a hospital for treatment of minor injuries.