The 12 were injured at an event at the Red CentreNATS event in Alice Springs, Australia.
“Twelve patients are currently being treated at Alice Springs Hospital. One patient is in a critical condition and the remaining 11 are in a serious but stable condition,” organisers said in a statement.
“This is a distressing situation, however all patients are receiving the care they need.”
Footage taken by spectators at the event shows fuel igniting and flames being thrown over fans from a car that was skidding in circles.
The event was billed as the ‘Ultimate Festival of Wheels’ and attracted thousands of motoring enthusiasts to the central Australian town.