Shark Attack

A friend confirmed Simon Nellist died in the attack on Wednesday.

Police have not yet formally identified the victim and his family have not commented.

Australian authorities are still searching for the great white shark, with swimmers banned from the water and most city beaches shut after Wednesday's attack.

Mr Nellist - who was a diving instructor - was mauled by a great white shark just off Little Bay in east Sydney. He was a member of the city's Scuba Diving Social Club and a regular swimmer at the beach, BBC Sydney correspondent Shaimaa Khalil reports.

Emergency services were called to Little Bay beach near Malabar on Wednesday afternoon where human remains were found in the water, police say.

Authorities in the New South Wales state have not named the victim, and an investigation is under way.

Little Bay and several nearby beaches are now closed.

At the time of the attack at 16:30 local time (05:30 GMT) on Wednesday, there were dozens of people swimming, paddle boarding and fishing on the nearby rocks, according to Sky News Australia.

The teenager's mother and two siblings were also at the scene, a popular surfing spot near Esperance.

It is the third fatal shark attack in Western Australia within 12 months.

The latest incident happened in the same area where a surfer lost his arms in a shark attack in 2014.

Neville Mansted, a professional fisherman, said he would not surf there again.