British tourist died on Friday while scuba diving at Australia's Great Barrier Reef, Reuters cited the police.
The 60-year-old man was scuba diving at Agincourt Reef in Far North Queensland when he was seen to be in trouble, tour operator Quicksilver said. The tourist, a certified diver, was helped to the surface but could not be revived.
The police did not have details immediately on what caused the death of the man.
The accident became the third fatality there this week.
On Wednesday, two French tourists in their 70s died after they both suffered heart attacks while snorkeling on the reef at Michaelmas Cay.
The Great Barrier Reef stretches 2,000 km along Australia's northeast coast and is the world's largest living ecosystem.
It attracts more than two million visitors each year and brings in billions of dollars in tourism revenue.