Emergency Services responded to a single motorbike crash in Tallai about 6.15pm this afternoon, October 28.
Initial information indicates the unregistered trail bike has struck a waterpipe on Wallandra Drive.
A male rider was transported to Gold Coast University Hospital in a critical condition.
A female passenger was transported in a serious condition.
The Forensic Crash Unit are investigating.
Anyone who witnessed the incident, or who has information or vision that may assist with the investigation is urged to contact police.
Quote this reference number: QP2401852015
If you have information for police, contact Policelink by providing information using the online suspicious activity form 24hrs per day at www.police.qld.gov.au/reporting.
Report crime information anonymously via Crime Stoppers. Call 1800 333 000 or report online at www.crimestoppersqld.com.au.