[CAUTON: GRAPHIC VIDEO]

NASCAR driver Tony Stewart struck a sprint car driver during a race Saturday night in Canandaigua, NY. That driver, Kevin Ward Jr, was pronounced dead at the local hospital.

The video [CAUTON: GRAPHIC VIDEO] shows Stewart and Ward colliding during the race. When the caution flag comes out, Ward is seen getting out of his car trying to confront Stewart when the accident occurred.

Stewart is a 3-time NASCAR champion and often races at local tracks with sprint cars.

Local authorities continue to investigate what happened.