Two-time NASCAR Cup Series champion Kyle Busch has been hospitalized with a severe illness and won’t compete at Charlotte Motor Speedway this weekend, his family said Thursday.

CONCORD, N.C. (AP) — Kyle Busch died after severe pneumonia progressed into sepsis, resulting in rapid and overwhelming associated complications, according to a statement released by his family.

He died after being hospitalized with a “severe illness,” his family, his racing team and NASCAR said in a joint statement.