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Kyle Busch cause of death revealed: What happened to the NASCAR star?

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

Updated on: May 23, 2026, 22:18:56 IST
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Legendary NASCAR driver Kyle Busch passed away Thursday at the age of 41. According to a medical evaluation released Saturday, Busch died after severe pneumonia progressed into sepsis, leading to rapid complications.

A general view of an LED screen displaying a tribute to Kyle Busch prior to practice for the NASCAR Cup Series Coca-Cola 600 Charbroil 300 at Charlotte Motor Speedway in Concord, North Carolina. (Getty Images via AFP)
A general view of an LED screen displaying a tribute to Kyle Busch prior to practice for the NASCAR Cup Series Coca-Cola 600 Charbroil 300 at Charlotte Motor Speedway in Concord, North Carolina. (Getty Images via AFP)

Dakota Hunter, vice president of Kyle Busch Companies, said the family received the official medical findings on Saturday, according to ESPN.

"The medical evaluation provided to the Busch Family concluded that severe pneumonia progressed into sepsis, resulting in rapid and overwhelming associated complications," the family said in a statement. "The Family asks for continued understanding and privacy during this difficult time."

On Thursday, Busch’s family had announced that he was hospitalized following a “severe illness."

"On behalf of the Busch family, everyone at Richard Childress Racing and all of NASCAR, we are devastated to announce the sudden and tragic passing of Kyle Busch," the joint statement from NASCAR, the Busch family and Richard Childress Racing read.

Also Read: What was Kyle Busch’s $8.5 million lawsuit about? Settlement details emerge after NASCAR star’s death

911 call details emerge

On Friday, TMZ obtained audio of a 911 call made before Busch’s death. In the recording, the caller described Busch as struggling to breathe, overheating, and coughing up blood before collapsing. The emergency call was reportedly placed around 5:30 p.m. Wednesday.

"I've got an individual that's shortness of breath, very hot, thinks he's going to pass out, and he's producing a little bit of blood, coughing up some blood," the caller told dispatch.

The caller repeatedly confirmed Busch was still conscious at the time, saying, “He is awake. He’s awake. He’s awake."

Busch was reportedly found lying on the bathroom floor inside a training facility when paramedics arrived. He had recently been spending extensive time using a racing simulator after joining Richard Childress Racing.

Also Read: Kyle Busch family: All on NASCAR Cup Series champion's wife, kids after sudden death

Tributes pour in

Fellow NASCAR drivers quickly paid tribute to the driver.

"There aren't really words for today," Hyak Motorsports driver Ricky Stenhouse Jr. wrote on X.

"I've raced against Kyle for a long time, and anyone who's lined up next to him knows exactly what made him special, he gave you everything he had, every single lap, and he made all of us better for it.

“Rest easy, Rowdy. The sport won't be the same without you.”

Joe Gibbs Racing driver Denny Hamlin added, “Absolutely cannot comprehend this news. We just need to think of his family during this time.”

 
ABOUT THE AUTHOR
Vaishnavi Vaidyanathan

Vaishnavi Vaidyanathan leads the US Desk at Hindustan Times, where she writes, strategises coverage, and ensures quality across all beats. With eight years of experience covering US news for leading publications, she has reported extensively on politics, entertainment, and sports. Vaishnavi holds a graduate degree in English, Journalism, and Psychology, and completed her PG Diploma in Broadcast Journalism from the Manorama School of Communication, where she was awarded the prestigious Mammen Mappillai Award for Best Outgoing Student. She began her career at the International Business Times (US Edition), covering US breaking news, politics, and entertainment. She later joined Opoyi, reporting across all beats, including US sports and trending stories. Prior to Hindustan Times, she served as World Lead at Times Now News, covering comprehensive world news and events. Vaishnavi has expertise in politics, entertainment, and breaking news, and enjoys tackling stories across a wide range of topics. Beyond the newsroom, she is an avid traveller, a foodie who loves exploring new restaurants, and a pop culture enthusiast who enjoys watching latest shows and films. She also enjoys engaging in debates and discussions on Reddit.

Catch all the latest Sports News, scores, and highlights in one place. Stay updated with real-time coverage of your favorite games and athletes along with Lionel Messi latest updates.
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