According to FOX News, two-time NASCAR Cup Series champion Kyle Busch died Thursday (May 21) from complications related to “severe pneumonia [that] progressed into sepsis,” his family revealed in a statement on Saturday. 

Vice president of Kyle Busch Companies Dakota Hunter shared the family statement in a news release just days after Busch, 41, tragically died after being hospitalized. 

“The medical evaluation provided to the Busch Family concluded that severe pneumonia progressed into sepsis, resulting in rapid and overwhelming associated complications,” the statement read.

FOX Sports’ Bob Pockrass first reported the family’s statement on Saturday. Busch was hospitalized this week after collapsing in a Chevrolet simulator.

A 911 call from the Cabarrus County Sheriff’s Office, obtained by Fox News and OutKick, revealed that he was coughing up blood and experiencing shortness of breath. 

According to an unidentified man on the phone, Busch was alert at the time.

[Story courtesy of FOX News]