1 of 5 | Driver Kyle Busch totaled a record 234 victories across NASCAR's three series. File Photo by Bill Gutweiler/UPI | License Photo

May 22 (UPI) -- NASCAR's Kyle Busch was short of breath, overheating and coughing up blood the night before his death, according to a 911 call obtained Friday by UPI.

The emergency call was made Wednesday afternoon from General Motors Charlotte Technical Center in Concord, N.C. An incident report said that Cabarrus County medical supervisor responded to an incident that involvied a man with breathing problems.

The name of the caller was redacted in the audio obtained from the Cabarrus County Sheriff's Office.

NASCAR announced Thursday that Busch died after a brief illness. He was 41. Neither the auto racing company nor Busch's racing team or family have disclosed his cause of death.