A surfer in Australia was attacked by a great white shark while out in the water Tuesday morning ... and, tragically, his injuries were so bad, he died at the scene.
Authorities in New South Wales say the 59-year-old had been trying to catch waves at Tuncurry Beach when he saw sharks nearby in the water.
Officials say he tried to warn friends of the beasts ... but, sadly, they say one of the sharks latched on to the man's thigh and bit him so ferociously -- it caused serious damage.