A man was fired by police after the officers after they were called in the incident in yarra junction in Wednesday night.
The police said the officers were called to a address on Warburton Highway after a man was by assaulting a woman about 5.30.
“Two police officers attended the address and observed a man assaults a woman”, police said in the statement issued the land of Wednesday.
A police officer downloaded their firearm after a confrontation, the police said.
Ambulance kills were called at the scene, but the man could not be revived. The woman has been taken by the airplane ambulance and is treated for serious injury.
The police said that man and woman believes be known to each other.
The teacher’s detectives investigate the matter with the professional standards command, which is the standard procedure for a fatal police shot.
The State Coroner, Judge John, was also attended the scene.
The police appealing for someone who witnessed the incident or who could provide the more information to contact the 1800 333 000 or submit a confidential report online www.crimestoppersvic.com.au