US stunt driving star Ken Block has died in a snowmobile accident at the age of 55.
The news was confirmed in a statement on social media by Hoonigans, Block's brand and race team, on Tuesday (NZ time).
"It's with our deepest regrets that we can confirm that Ken Block passed away in a snowmobile accident today," it read.
"Ken was a visionary, a pioneer and an icon. And most importantly, a father and husband.
"He will be incredibly missed."
According to the Wasatch County Sheriff's Office, Block was riding a snowmobile up a steep slope when the vehicle suddenly tipped up and landed on top of him. Officials said he died at the scene due to his injuries.
"Mr Block was riding with a group but was alone when the accident occurred," the sheriff's office said in a statement.
"We are saddened to hear of the loss of Kenneth and our hearts are with his family and friends so deeply affected."
Block co-founded action sports brand DC Shoes before taking up rallying. He became famous to the wider public for his Gymkhana video series which amassed millions of followers.