All correctional facilities in south-east Queensland have been placedĀ  in stage four lockdown after a staff member at the Queensland Corrective Services academy tested positive for coronavirus.

Assistant secretary of the Together Queensland Corrections Union Michael Thomas says the man interacted with several trainees who have since visited multiple facilities.

Mr Thomas says stage four restrictions have been enforced as a precautionary measure; requiring prisoners to remain in their cells and everyone on site to wear a mask.