Missing man's belongings found on WA beach

A search is underway for an elderly man whose belongings were found on a Perth beach.

William Wayne, 76, was last seen at Mosman Park on Friday afternoon, with his car later found in the nearby suburb of Swanbourne, police said.

His belongings were found by SES volunteers along the coastline at Swanbourne on Saturday morning, with water police and land crews continuing to search the area.