NASCAR racer Kyle Busch died of sepsis that developed from severe pneumonia, his family announced on Saturday.

Kyle Busch's family earlier Thursday announced he had been hospitalized with a "severe illness."

Kyle Busch won 234 races across NASCAR’s top three series, including 63 in the Cup series. He won the Cup series championship in 2015 and 2019.

NASCAR driver Kyle Busch died Thursday at age 41

Busch, a two-time NASCAR champion, died at 41 on Thursday

Kyle Busch died after severe pneumonia progressed into sepsis, leading to rapid complications.