A surfer is "lucky" to survive a shark attack off the coast of New South Wales with just minor injuries after his surfboard was targeted by a bull shark in the fourth incident in area in three days.

Authorities warned that recent rainfall has left the water off area beaches murky, which increased the risk of bull shark attacks.

In a span of 48 hours, a 12-year-old boy, an 11-year-old boy and two male surfers were attacked by sharks in New South Wales as of Tuesday. Of them, three shark

The attacks have left two people in hospital, with people asking why bull sharks are having such an impact on New South Wales' beaches.

A 12-year-old mauled by a shark in Australia’s Sydney Harbour has been identified as Nico Antic, with a family friend saying the boy had suffered “devastating injuries”. Antic was attacked on Sunday afternoon while swimming with friends near Shark Beach in Vaucluse, an affluent harbourside suburb in Sydney’s east.

The shark alarm was sounded at Coogee Beach in Sydney’s eastern suburbs on Thursday morning after multiple reports of a bull shark in the area, forcing swimmers and surfers from the water.

A surfer was attacked one day after a large shark bit a 12-year-old boy in the legs, leaving him fighting for survival in a hospital.

SHARK mayhem has shaken Australia’s New South Wales coastline after a fourth vicious attack in the space of just 48 hours. A 39-year-old surfer “sustained a wound to his chest”