Following a non-racing accident, three-time Sprint Cup Series Champion Tony Stewart has been hospitalized with a back injury.

Stewart-Haas Racing spokesman Mike Arning told the Associated Press that Stewart is awake and alert, and able to move his extremities. Arning added that there would be no updates on Stewart’s condition until Thursday afternoon.

Stewart announced during the second half of the 2015 season that the upcoming 2016 season would be his last year behind the wheel full-time in the NASCAR Sprint Cup Series. Stewart finished 28th in points this past season with three top-10 finishes.