Ken Block had great success in motorsports, but he became best known for his social media by amassing almost 2 million subscribers on his YouTube channel.

Rally driver Kenneth Block, better known as Ken Block, died Monday at the age of 55 in a snowmobile accident.

According to the Wasatch County Sheriff’s Office, he said he received a call about an accident in the Mill Hollow, Utah area.

“The driver, Kenneth Block, was riding a snowmobile up a steep grade when the snowmobile flipped over and landed on top of him. He was pronounced dead at the scene of injuries sustained in the crash,” the sheriff’s office said.

“Mr. Block was traveling with a group but was alone when the accident happened,” he added.

Police from the sheriff’s office, Search and Rescue, Utah State Parks and the US Forest Service responded to the scene.

“We are saddened to learn of the loss of Kenneth and our hearts go out to his deeply affected family and friends,” the sheriff’s office added.

“Ken was a visionary, a trailblazer and an icon. And most importantly, a father and husband. He will be sorely missed,” Hoonigan Industries, the automotive apparel and media company Block co-founded, wrote on Instagram.

Block has 1.92 million followers on YouTube and his Gymkhana videos (car driving stunt videos) regularly have 50 million views.

Block, also competed in skateboarding and motocross. He racked up a total of 16 wins in 60 Rally America races between 2005 and 2014, plus five X Games medals and is one of the few American drivers to score points in the World Rally Championship.

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