Police are investigating the cause of a fatal accident in Yangebup.
Major crash detectives are investigating a fatal accident that left a man dead in Yangebup last night.
Police say the crash happened around 9.30pm when the man lost control of his motorcycle and hit a tree.
Bystanders treated the man but he was declared deceased at the scene.
Police are seeking witnesses who may have seen the black and red off-road Honda motorcycle in the Yangeboup area or on Yangeboup Road before the incident.
Anyone with information should contact Crime Stoppers on 1800 333 000 or make a report online at http://www.crimestopperswa.com.au.
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