Four people have died following an aircraft collission in Mangalore, near Avenel this morning.
Emergency services were called to two separate crash scenes east of the Mangalore airfield about 11.25am.
It is believed two aircraft have collided mid-air before crashing.
Two occupants in each aircraft have died at the scenes.
The four people are yet to be identified.
The Civil Aviation Safety Authority and the Australian Transport Safety Bureau have been notified.
Police are currently investigating and will prepare a report for the Coroner.
The Civil Aviation Safety Authority said one of the planes was a Piper Seminole twin engine registered to Moorabbin Aviation Services on a training flight and the second was a privately-owned Beech Travel Air D95A registered to Tyabb.
CASA will investigate, as will the Australian Transport Safety Bureau.Mangalore Airport is open to recreational flyers and those learning to fly, and is also used by state and federal government departments.