Missing man's bike found

Police have discovered a bicycle believed to belong to a missing Carey Park man.

Desmond Dean Cossey, 76, was reported missing after he was last seen leaving home on his bike about 8.45am on Wednesday.

The bike was discovered near Mindalong Beach off Ocean Drive in Bunbury and police have blocked off the entrance to the beach.

Police, City of Bunbury rangers, SES volunteers and tracker Marlon Johns are focusing their search in the area.