Tara Police Station Constable Matthew Arnold, 26, and Tara Police Station Constable Rachel McCrow, 29, were then "shot by two armed offenders as they approached the residence on the property," Queensland Police said.
A third officer suffered a "bullet graze" and is currently being treated in the hospital, police continued, while a fourth escaped without physical injury.
A neighbor also died in the ambush after going to investigate the situation, Queensland Police confirmed Tuesday.
Two men and a woman aged in their mid-40s were fatally shot by a tactical police team at the scene around 10.30 p.m.
According to the BBC, the uninjured officer was a rookie patrolman who survived by finding cover in scrub and messaging her loved ones for help.