A critical incident investigation has been launched following the death of two people at Parramatta.
The incident occurred outside the NSW Police headquarters building on Charles Street about 4.30pm today after a number of shots were fired, NSW police said.
"It appears an officer has discharged his weapon, responding to a report that a person had been shot".
Two people have died at the scene.
A crime scene has been established.
A critical incident team will now investigate all circumstances surrounding the incident.
Police are yet to establish the identity of the deceased.
