IndyCar driver Dario Franchitti has suffered a spinal fracture during a crash at the Grand Prix of Houston.
The Scotsman was sent to hospital after he collided with Takuma Sato and crashed into the track wall on the final lap of the race.
A statement from IndyCar said: "IZOD IndyCar Series driver Dario Franchitti was admitted awake and alert to Memorial Hermann Texas Medical Centre in Houston for a concussion, spinal fracture that will require no surgery and a fracture to the right ankle. He will be kept overnight."
Reports have claimed that several spectators were injured when debris from the crash flew over the fencing.