Kyle Busch, a two-time NASCAR Cup Series champion and the winningest driver across the sport's three national series, has died at 41.

The Busch Family, Richard Childress Racing, and NASCAR issued a joint statement Thursday confirming his death following hospitalization. No cause was given. Earlier Thursday, his family said he was hospitalized with a “severe illness,” just three days before he was scheduled to compete in the Coca-Cola 600 at Charlotte Motor Speedway.

“Our entire NASCAR family is heartbroken,” the statement read. “A future Hall of Famer, Kyle was a rare talent, one who comes along once in a generation. He was fierce, he was passionate, he was immensely skilled and he cared deeply about the sport and fans.”

The statement noted that over a career spanning more than two decades, Busch set records for national series wins, won championships at NASCAR’s highest level, and mentored the next generation as a Truck Series owner. His competitive spirit and sharp wit built a devoted fan base known as ‘Rowdy Nation.’