He said he understood there were young officers involved.
“Obviously it’s very, very busy in the regions, so a lot of police officers are trying to understand what’s happened,” he said.
“Two young officers are said to have been killed and a third injured, but we are waiting for the police report to come back on that.”
It is understood that the bodies of the two officers have been removed from the area.
Police Commissioner Katarina Carroll was scheduled to address the media at 9.30pm AEST in relation to what is being described as an “ongoing police incident”.
Special emergency officers had been searching for the suspected criminals who were believed to be heavily armed and possibly wearing camouflage.
Police declared an emergency at around 6.15pm, with several teams at the property and heavily armed specialist personnel. At least one helicopter was also dispatched to assist.
Wains Road was closed, with the area including the area between Chinchilla Tara Road, Wieambilla Road, Bennetts School Road and Mary Street.
“Residents in the declared areas should remain indoors until further notice, and drivers and pedestrians are advised to avoid the area,” police said.
The sparsely populated area is home to several large properties and gas fields. It lies between the regional center of Chinchilla, population 7068, and Tara to the southwest.
NSW Police declined to comment on reports they had alerted local police to a missing person shortly before the initial disturbance.
More to come.