A BAG of dead puppies has been found on the banks of the Burnett River with authorities labelling the act as "inexcusable" and "callous".
Brandon McMonigal made the gruesome discovery near Kirby's Wall while fishing at his favourite spot early yesterday morning.
"The tide came up and dumped the bag on the banks of the river," he said.
"I thought it was just rubbish and went to collect the bag.
"I saw the hair and thought it was a rug at first."
Upon closer inspection, Mr McMonigal realised what was inside and was shocked.
"It's disgusting and feral behaviour," he said.
"Why would you do something like this?"
Bundaberg Regional Council health and regulatory services spokesman Wayne Honor confirmed its animal control department investigated a report of puppies dumped in the Burnett River.
"A local law officer removed the deceased puppies and the matter has been reported to the RSPCA for further investigation," he said.
"This is an inexcusable act of animal cruelty which was quite distressing for all council staff involved."
The incident comes just weeks after a person left a female german shepherd tied to a tree in bush off the Isis Hwy.
The dead dog was found by a Department of Mains Road worker at 1pm on January 9. The RSPCA is determined to find a culprit and offered a $5000 reward for information that leads to a conviction.
RSPCA Queensland spokesman Michael Beatty said nothing had come from the investigation so far and described the latest incident as a "callous act".
"If you do need to dispose of an animal there are a lot of ways it can be done humanely and legally," he said.
"Either take them to the vet to be euthanised or surrender them to the council or RSPCA."
More than 460 animal cruelty complaints were made in the Bundaberg region last year.
RSPCA statistics show Bundaberg East, Bundaberg North and Kepnock as hot spots.