Ontario County, NY Sheriff Philip Povero said Tuesday in a statement that the investigation into the death of Kevin Ward Jr., the race car driver who was struck and killed by NASCAR driver Tony Stewart, could take at least two weeks.

For the first time since Saturday night's tragedy in Upstate New York, Bristol Motor Speedway officials are commenting.

BMS General Manager Jerry Caldwell spoke to WSLS-TV in Roanoke Tuesday.

"I applaud NASCAR because they will always evaluate situations and make changes when necessary," Caldwell said, when asked whether NASCAR may make a rule change regarding drivers exiting their cars on the race track.

"It's a tragic accident. Our hearts and prayers go out to all those that were impacted. I know NASCAR will evaluate the situation and make the necessary changes. They'll evaluate it and decide. They are always going to air on the side of caution for the safety of the participants and the fans."

Stewart's status for the next NASCAR race in Michigan remains up in the air, as does his status for the Irwin Tools Night Race at Bristol Motor Speedway Aug. 23.