A pack of tiger sharks has been spotted feeding on a huge whale carcass near Rottnest island off the Western Australian coast.
A local television station carried pictures of the group circling and savaging on the deceased mammal.
Fishermen and boat operators were warned to stay away as state fisheries officials inspected the area, local media reported.
Rottnest Island lies near the state capital of Perth and is a popular tourist destination.
The sharks are believed to be juveniles tiger sharks measuring up to 6.5 ft long.
But fisheries officials fear bigger sharks could soon be lured to the area.