POLICE forensic officers are investigating the early morning crash of a stolen car on the Bruce Highway south of Caloundra, that left five young adults seriously injured - two of them critical.
Reports suggest three of the occupants were thrown from the station wagon when it veered off the highway and into a culvert, before it hit an embankment and spun into the northbound lanes.
All five people in the car, aged 18 to 22, were treated at the scene before being transported to Nambour Hospital. It's believed some of them were not wearing seatbelts at the time of the crash.
Police are investigating whether the car may be linked to an earlier break and enter.
The accident caused a small grassfire, which was soon extinguished.
One lane of the highway was closed while the scene was cleared.