WARNING: Some viewers may find the following video distressing.
17-year-old British Formula 4 driver Billy Monger has had both legs amputated after a horrific high-speed crash on Sunday.
Monger was left fighting for his life after the crash in a race at Donington race track in England, a smash which left him trapped in his car for around 90 minutes.
Monger careened into the back of a car being driven by Finland's Patrik Pasma which appeared to have stopped on the track.
Onboard footage from a camera on Monger's car showed him seeming to run into the back of Pasma's stationary car.
After being trapped in his car for an hour and a half, the British driver was airlifted to hospital in nearby Nottingham.
Three-time world champion Lewis Hamilton has rallied to the support of the teenager.
"I have only just seen the news of this tragic incident," tweeted Mercedes star Hamilton with a link to a crowd-funding campaign set up for Monger.
"Thoughts and prayers are with you and your family, @BillyMonger."
Sergio Perez, a rival of Hamilton in the F1 championship, also appealed for help.
"Let's help our fellow and his family thru this tough times! @BillyMonger," tweeted the Mexican Force India driver.