An Australian man saved his wife that was being attacked by a shark near Shelley Beach in New South Wales on Saturday.
The man jumped from his surfboard onto the shark and punched the shark repeatedly until it released his wife.
"This fella paddled over and jumped off his board on to the shark and hit it to get it to release her and then assisted her back into the beach," said Surf Life Saving NSW chief executive Steven Pearce. "Pretty full-on, really heroic."
She was airlifted to Newcastle Hospital for serious injuries on her right leg. She is in stable condition.
Experts believe the woman was mauled by a juvenile great white shark, up to 10 feet in length.
"The bystanders on scene that rendered assistance should be commended. They did an amazing job," said Inspector Andrew Beverley of Ambulance NSW.