A 37-year-old woman was in her backyard when a bus crashed through her fence and hit her in a freak accident on Brisbane's bayside.
The woman was talking to her mum who was hanging out washing when the bus hit her.
She has serious head and chest injuries and has been transported to the Princess Alexandra Hospital.
Her mum was lucky to have escaped the hurtling bus.
Police say the bus was involved in a collision with two cars at the intersection of Peel and Dart streets at Redland Bay about 10am (AEST).
The bus careered off into a vacant lot then ploughed through a fence, hitting the woman in her backyard.
It continued for several more metres, knocking down another fence and crashing into the neighbour's porch and a stationary car.
No one was in the car or on the porch at the time of the crash.
An 18-year-old man who was driving one of the cars involved in the original collision has also been taken to hospital with serious head and chest injuries.
The bus driver has been taken to the Redland Bay Hospital with minor injuries.
Seven others have also been treated for minor injuries.