A 27-year-old woman was taken to Princess Alexandra Hospital in a serious condition on Saturday night.
A Queensland Police Service spokesperson said police were investigating the cause of the crash.
“Initial investigations indicate at about 11.40pm, a vehicle travelling north on Chambers Flat Road has left the road and rolled,” the spokesperson said.
“The 27-year-old female driver and sole occupant of the vehicle was thrown from the car as a result of the crash.”
Paramedics also took a female motorist to Logan Hospital in stable condition on Sunday night after a two vehicle crash on Browns Plains Road and the Mount Lindesay Highway at 11.47pm.