According to local CBS affiliate WISH-TV, Stewart's accident was thought to be the result of a cut tire, and occurred during the portion of the test closed to media. Transportation by paramedics was not necessary, although the station reported Stewart did speak with NASCAR medical personnel.
Stewart, co-owner and driver for Stewart-Haas Racing, is one of six Sprint Cup drivers participating in the two-day test. Also taking part are drivers Greg Biffle (Roush Fenway Racing Ford) Clint Bowyer (Michael Waltrip Racing Toyota), Kyle Busch (Joe Gibbs Racing Toyota), Joey Logano (Team Penske Ford) and Ryan Newman (Richard Childress Racing Chevrolet).
A native of Columbus, Ind., Stewart won Sprint Cup titles in 2002, '05 and '11. He has 48 victories in the series in 536 career starts.
He is a two-time winner of the Brickyard 400 at IMS, scoring his first victory in 2005 and adding a second win two years later, in '07.
The Sprint Cup Series returns to IMS July 27 for the Crown Royal Presents the John Wayne Walding 400 at the Brickyard Powered by BigMachineRecords.com.
No. 14 team engineer Chris Chidgey posted an image of Stewart's car from the garage in the Instagram post below.