August 11, 2014 at 4:38 pm

Tony Stewart hasn't decided if he'll race Sunday at Michigan International Speedway

Tony Stewart on Monday pulled out of another race, following a Saturday incident in which he struck and killed a fellow driver. (Mike McCarn / Associated Press)

Tony Stewart has pulled out of another race in the wake of a weekend on-track incident in which he struck and killed a fellow driver.

Plymouth Speedway in Indiana released a statement Monday announcing Stewart had withdrawn from Saturday’s dirt-track race.

“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,” the track said in a statement. “Tony Stewart will not be racing at Plymouth Speedway this Saturday. More information on the weekend’s racing will be announced this week.”

Stewart hasn’t yet decided if he will compete in this Sunday’s Sprint Cup race at Michigan International Speedway in Brooklyn.

“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,” said Mike Arning, spokesperson for Stewart. “It is still an emotional time for all involved, Tony included. He is grieving, and grief doesn’t have a timetable.”

Arning added that Stewart had “some extra-curricular racing plans for this weekend, but those have been canceled and won’t resume until further notice.”

A NASCAR spokesman said there is no specific deadline for a driver to decide whether to compete, but NASCAR should be informed of a decision sometime prior to the start of the race.

On Saturday night, Stewart was racing at Canandaigua Motorsports Park in upstate New York when there was a confrontation with Ward, who exited his car and walked on to the track to seemingly have words with Stewart. Video of the crash then shows Stewart’s car hitting Ward, 20, and hurtling him 50 feet. He later died.

Stewart, 43, was visibly shaken when meeting with officials, police said, and Sunday morning, he pulled out of the Sprint Cup race in Watkins Glen, N.Y.