A 33-year-old man has died after being attacked by a shark off the north Queensland coast, in the same area where two other people were attacked in September.
The attack happened at about 5.30pm (local time) on Monday at Cid Harbour on Whitsunday Island.
The man was airlifted with critical wrist and leg injuries to Mackay Base Hospital, where he was rushed to surgery upon arrival.
"He'd suffered very serious bites, significant blood loss as well as cardiac arrest," Central Queensland rescue crewperson Ben McCauley said.
"When we arrived he was already being treated by a paramedic from Hamilton Island, two off-duty doctors and an emergency department nurse from other nearby vessels."
Two tourists - a 46-year-old woman and a 12-year-old girl - were attacked in separate incidents in the same area in September.
Paramedics described this third attack as "the worst one yet".
Drum lines were deployed and several large sharks were caught.