CANANDAIGUA, N.Y. (AP) -- Tony Stewart will not race Sunday following the death of a sprint car driver who was struck and killed by Stewart at an upstate New York dirt track.
Greg Zipadelli, competition director for Stewart-Haas Racing, said the three-time NASCAR champion "feels strongly" he should not race at Watkins Glen following Kevin Ward Jr.'s fatal accident.
Regan Smith will replace Stewart in the car.
Ward had climbed from his car on the darkened dirt track and was trying to confront Stewart when he was struck Saturday night.
Fan Michael Messerly says it appeared Stewart hit a driver who was walking on the track after they collided on a prior lap. He says Stewart did not appear to be injured.
A spokeswoman at Thompson Health says one patient is being treated from Saturday night's crash at Canandaigua Motorsports Park. She would not give further details.
The track canceled the remainder of the Empire Super Sprints slate.
The Ontario County Sheriff's Department says it's investigating but declined to give any details of the crash.
A spokesman for Tony Stewart calls the death of a fellow driver he struck and killed at an upstate New York dirt track a "tragic accident."
In a statement released Sunday morning, a representative for Stewart says, "our thoughts and prayers go out to his family and friends." The statement says Stewart's team is still trying to sort through the details of the accident.
Stewart is scheduled to race later Sunday in NASCAR's Sprint Cup race at Watkins Glen International.
Tony Stewart's car right after striking driver Kevin Ward Jr.