Plane crashes into mountain, killing two onboard

The RACQ rescue helicopter was deployed and spotted the wreckage of the plane at about 11:30, with black smoke seen billowing out from underneath the thick tree cover.

Queensland Police said on Sunday afternoon ground crews were still working to retrieve the aircraft, which is situated in difficult terrain.

It's understood two people, a man aged 73 and a woman aged 75, were onboard the aircraft at the time.

The Australian Transport and Safety Bureau said an investigation has begun into the cause of the crash of the SOCATA TB20 Trinidad single-engine plane.

ATSB investigators travelled to the remote site on Sunday afternoon, and will assess the terrain and weather conditions leading up to the crash for a report.