A DINGO that attacked a man at Poyungan Rocks and another that bailed up a man in the surf at Waddy Point will not be killed by rangers.
On February 4 a man was walking alone on the beach at Poyungan Rocks when three dingoes approached him, with one biting at his calf.
A second incident happened on February 11 when a man collecting beach worms south of the Waddy Point headland was threatened by an untagged male dingo.
The dingo attempted to attack the man, keeping him in the surf for about 30 minutes.
A Queensland Parks and Wildlife Service spokeswoman said none of the dingoes involved in the incidents would be euthanised.
"In the case of these two interactions the animals involved have not been positively identified," she said.
"Humane destruction of dingoes only occurs where the dingoes identified in an incident or incidents are assessed to pose an unacceptable risk to public safety on Fraser Island."
The spokeswoman said the QPWS had considered the matter closed.
Temporary signage warning people of the dangerous dingoes has been installed at Poyungan Rocks and Waddy Point.
QPWS rangers will also monitor both incident sites.