Police are appealing for witnesses to a single vehicle crash that occurred on March 6 at Mount Coot-tha.
Preliminary information suggests a red Honda Civic was travelling north west along Sir Samuel Griffith Drive around 10.40pm when it lost control and struck a tree.
All five occupants of the vehicle sustained injuries as a result of the crash.
Police are appealing for anyone who may have been in the area at the time, witnessed the crash or the car prior to the incident, or have dashcam vision to come forward.
The Forensic Crash Unit is investigating.