The flooding caused by ex-Tropical Cyclone Debbie in Australia has had a bizarre consequence - sharks are washing up in strange places across the northeast of the country.

Australians have been warned to stay out of floodwaters after another bull shark washed up in a playground in Slacks Creek, south of Brisbane, after floodwaters retreated.

Logan City councillor Steve Swenson spotted the shark while monitoring the floods in his area.

In a Facebook LIVE recorded on Sunday, Swenson said: "I've been encouraging you to stay out of the water.

"We've got a lot of houses behind us here that are cut off totally.

"The residents have been working together with canoes to get supplies through."

Last week, emergency workers in Australia stumbled across another enormous bull shark in the middle of a road in Ayr, Queensland, around 13km inland from the coast.

The region has been battered by Cyclone Debbie, which has battered Australia's northeast with torrential rain and gale-force winds for days.

Photos of the unfortunate shark went viral on social media after Queensland Fire and Emergency Services posted the images on Twitter.

"Think it's safe to go back in the water? Think again! You never know what lurks beneath the surface during a severe storm and what will wash up in the aftermath.

"Just ask emergency services who came across this bull shark during inspections around Ayr, where floodwaters are receding in some parts."