Australia shootings: 'Two dead' near Sydney police HQ

Two people have been killed in a shooting outside New South Wales state police headquarters in western Sydney, Australian police say.

A police statement said it happened after a number of shots were fired at about 16:30 local time (06:30 GMT).

The statement said it appeared an officer had discharged his weapon, responding to a report that one person had been shot.

The identities of those killed have not yet been established.

A critical incident team will now investigate all circumstances surrounding the incident, police say.

Vijay Dantu, who lives opposite the police building, told the Australian Broadcasting Corporation he heard multiple gunshots.

"I was doing some work at my home and there's a gunshot and I thought it was a tyre puncture," Dantu said.

"Then all of a sudden two more, two more shots came."

A critical incident team will now investigate all circumstances surrounding the incident, police say.