Another shark attack has been reported in Australia when a professional surfer lost “three-quarters” of his thigh after being mauled by the predatory species on Thursday.

Beachgoers and bystanders heard the screaming victim and helped the surfer get out of the shark’s grip. Brett Connellan, the victim, was taken to Sydney’s St. George Hospital via rescue helicopter ambulance and was declared to be in a critical condition.

According to Stuff New Zealand, the 22-year-old came to the NSW south coast from Kiama Downs and was accompanied by his friend to Bombo Beach. His friend was the one who reportedly heard him screaming. The shark attack victim did not notice the shark coming towards him and hence lost his thigh skin as well as injured his hand in the attack.

Ambulance Service spokesperson Terry Morrow confirmed that the beachgoers helped Connellan immediately. Morrow added that the kind strangers made a tourniquet for his upper thigh and saved his life before the paramedics reached the spot. “He had lost a large proportion of his left thigh, and the quad muscle was torn away right down to the bone,” Morrow told the Illawarra Mercury newspaper. “He could’ve bled to death before we arrived on scene. He was very lucky the members of the public were there and acted as they did. They saved his life, to tell you the truth.”

According to paramedics, Connellan received a blood transfusion and was also treated for pain on the spot. One of the medical experts confirmed that there was missing “three-quarters of his thigh” after the accident.”He’s alive, well and stable, so I’d say he’s a very lucky young man and it’s a matter of now allowing surgeons to do what they do best,” Morrow said.

NSW Surf Life Saving spokeswoman Donna Wishart said that the authorities believe that a person is more at a risk of shark attacks at dawn or dusk. However, there has been no case in recent times that could prove this belief.

The Telegraph UK reported that Bondi Beach is testing out a shark warning system that would make it easier to warn beachgoers in case any predator of more than six feet in length is noticed nearby.