tony stewart
Tony Stewart will not race Saturday in Indiana. (Getty Images)

NASCAR champion Tony Stewart will not participate in a dirt track race in Indiana on Saturday, and there's no decision as to whether he'll race on Sunday at Michigan International Speedway, either. 

According to Stewart-Haas Racing, there's no timetable for Stewart's return following Saturday night's fatal crash, which killed fellow driver Kevin Ward Jr. at a dirt track event in New York. 

"The decision to compete in this weekend's NASCAR Sprint Cup Series event at Michigan will be Tony's, and he will have as much time as he needs to make that decision," SHR's director of communications Mike Arning told USAToday.

"It's still an emotional time for all involved, Tony included. He is grieving, and grief doesn't have a timetable." 

Arning confirmed a statement from Plymouth Speedway in Indiana, stating that Stewart wouldn't be participating in the sprint car event. 

"We at Plymouth Speedway extend our deepest condolences and prayers to the family of Kevin Ward, Jr. and thoughts and prayers to Tony Stewart and his family," a statement from the track read, according to Yahoo Sports. "Tony Stewart will NOT be racing at Plymouth Speedway this Saturday."

An investigation into the events Saturday is ongoing. Stewart had initially planned to race this past Sunday at Watkins Glen after the tragic event the evening before, but he ended up withdrawing.