Body with bound hands and feet off Perth

The body of a man, whose hands and feet were believed to be bound, has been found off a Perth beach.

The man in his 50s was found face down in the water north of Trigg Beach during a jet ski patrol on Friday around midday.

Detectives are working to identify him.

The man was taken to Sir Charles Gairdner Hospital where he was pronounced dead.

More than a dozen SES volunteers are helping police search the surrounding area for clues to the man's identity.