A submarine has been spotted off the southeast Queensland coast in the most recent sighting of heightened military activity in the sunshine state.
There have also been reports of military craft flying over Surfers Paradise and Bundaberg.
The sightings result from the upcoming international joint military exercise Talisman Sabre that's set to kick off in Townsville next week.
The military exercise will adhere to strict COVID-19 protocols, with many international troops currently or already undergoing two-week quarantine in Queensland, the Northern Territory and New South Wales before the exercise starts.