10/10/2011 11:17 pm ET | Updated Dec 10, 2011

Bryn Martin, Missing Swimmer, Possibly Attacked By Shark At Australian Beach

A 64-year-old man has disappeared off one of Perth, Western Australia's most popular beaches in what is suspected to be a shark attack.

The West Australian reported damage to the black bathing suit of Bryn Martin, the missing swimmer, which is consistent with what a great white shark would cause, according to fisheries experts.

Despite no shark sightings, police have closed the beach until further notice.

According to WA Today, Martin is described by police as a strong swimmer with a heart condition. When he failed to meet his family for breakfast and then a 90-minute search, Martin's wife contacted police.

Cottesloe Senior Sergeant Denise Grant said "hopes were fading that he would be found safe."

Martin went missing at 8am Australian Western Standard Time, October 10 and his swim trunks were recovered from the ocean floor at 3pm that afternoon.

Martin was last seen by a friend a few hundred meters offshore, PerthNow reports.

Senior Sergeant Grant said police would patrol the beach over night and the search would continue at dawn.

On September 4, body boarder Kyle Burden from Sydney was killed at Bunker Bay in Western Australia by what was believed to be a great white shark.

In November 2000, businessman Ken Crew was killed at North Cottesloe Beach by a great white shark in waist deep water.

PETA recently launched a new ad targeting a fisherman who was attacked by a shark, and said, "Sharks are not the most dangerous predators on Earth, we are."

An annual report by the University of Florida's International Shark Attack File found that an average of five people per year are killed by sharks, while fishing fleets kill up to 70 million sharks per year.