Human remains found in Western Australian bushland have been confirmed to be those of missing man Corey O'Connell.

The remains were found by police on May 15 in a state forest near Nannup, in the state's south-west.

The 26-year-old man was last seen walking along Brockman Highway in Jalbarragup, south-east of Nannup, after leaving his car on June 24, 2021.

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Police said the remains were located close to a previous search zone, which concluded in March.

O'Connell's family has been notified.

Officers returned to the location today and another search is underway over an expanded area in a bid to locate further remains.

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