Police are worried somebody may be missing following the discovery of items including a bible at Alkimos Beach, north of Perth.
The belongings were found on Friday close to the water by somebody walking along the sand.
They include a red leather New Testament bible, a black puffer vest, khaki pants and a pink rose.
Police say they are unusual items to be left at a beach.
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The police helicopter has searched the beach and ocean, but there has been no sign of anybody.
If you know who these items might belong to, call police on 131 444.