Emergency crews are responding to reports of another shark attack near Cid Harbour off the north Queensland coast, the same area where two other people were attacked by sharks in September.
The Queensland Ambulance Service (QAS) said a man in his 40s had suffered injuries to his leg and arm.
The QAS said the latest attack occurred at 5:37pm on Monday.
On September 19, Tasmanian woman Justine Barwick was mauled on the leg by a shark while swimming in Cid Harbour on Whitsunday Island around 5:00pm.
She lost a lot of blood and authorities believed the presence of an emergency doctor on a nearby boat saved her life.
Less than a day later, a 12-year-old girl was bitten on the leg by a shark at Cid Harbour and rushed to Mackay Base Hospital in a critical condition.