MICHIGAN -- NASCAR announced a new rule Friday that prevents drivers from walking on the track or approaching moving vehicles after accidents.
The rule comes less than a week after a sprint car driven by Tony Stewart struck and killed Kevin Ward Jr. at Canandaigua Motorsports Park.
Stewart has withdrawn from this weekend's Sprint Cup race in Michigan. Jeff Burton will drive
the No. 14 car.
Ward was laid to rest Thursday in Turin, Lewis County. More than 500 people attended the service.
During his funeral, family members and close friends shared stories about Ward. A majority of people wore orange in his honor.
At a Friday morning press conference, Stewart Haas Racing said Stewart is currently at an undisclosed location with family and friends.
The investigation into the incident continues.