UPDATED 1pm: Two truck drivers were lucky to escape a crash on the Australind Bypass this morning without serious injuries.
The incident, which was incorrectly reported as two separate crashes, happened at about 7.45am at the Clifton Road intersection on the bypass when two trucks crashed.
One driver, who was leaving the Brunswick Show, was taken to Bunbury Regional Hospital with injuries.
Traffic was banked back more than one kilometre as emergency services attend the scene.
The morning traffic into Bunbury was slowed to a crawl until the scene was cleared at about 10.30am.
South West Traffic officer-in-charge Sgt. Craig Clarke said police were investigating the crash.