BLOOMINGTON, Ind. (AP) — Michigan running game coordinator Mike Hart was carted off the field on a backboard and taken to a hospital for evaluation during the first quarter of Saturday’s game at Indiana.

It was unclear what happened to Hart and a team spokesman said there was no update on Hart’s condition. He did give a thumbs up sign before leaving the stadium.

Hart wound up on the ground after Indiana made an extra point to tie the score at 7 with 4:57 left in the quarter. Michigan’s players cleared the bench and spread out across the field, many dropping to one knee. Several Michigan coaches including head coach Jim Harbaugh stood nearby as trainers worked on Hart.

Hoosiers coach Tom Allen also walked across the field to see Hart, who previously served on Indiana’s coaching staff.

Hart rushed for more than 5,000 yards at Michigan and is still the career rushing leader for the fourth-ranked Wolverines. He also played professionally for the NFL’s Indianapolis Colts.

Harbaugh issued a statement:

Mike (Hart) had a medical emergency during the game and he’s in stable condition. He’s going to stay overnight in Bloomington for continued observation. Mike is a strong guy and abundant prayers go his way … It really puts things in perspective.

In the moment, everybody’s thoughts were with Mike. Mine were and everyone around us was to get him the care that he needed … The most important thing is his health at that point in time.

— Jim Harbaugh