Major Crash Investigators are seeking information regarding a serious crash on Old Coast Road overnight.
Just before 8.30pm last night South West Traffic officers in a marked traffic vehicle were traveling on Old Coast Road, Australind when they observed a motorcycle approaching them.
Police activated lights and siren and made u-turn with the intent to stop the motorcycle and speak to the rider when the clocked the rider speeding at over 90km/h in a 60 zone.
The pursuit was called off when the rider accelerated away from officers.
The police officers observed a dust cloud in the distance and then located the motorcycle crashed at the intersection of Old Coast Road and Paris Road, which is controlled by a roundabout.
Emergency first aid was provided to the rider until St John Ambulance personnel arrived and took over.
The rider, who is believed to be a man in his 40s, was taken to Bunbury Hospital with serious injuries and was later transferred to Royal Perth Hospital by the RAC Rescue Helicopter.
Anyone with information regarding this crash, or who saw the motorcycle involved prior to the crash, is asked to call Crime Stoppers on 1800 333 000 or report the information online at www.crimestopperswa.com.au.