South Dakota State running back Nate White died at age 20, the football program said in a statement late Wednesday.

White spent his first two seasons at Wisconsin but didn’t get into a game. In January, he transferred to play for the Jackrabbits with three years of eligibility remaining.

Police in Brookings, S.D., did not confirm a cause of death and said in a press release an active investigation is underway.

“Jackrabbit football is a brotherhood and today we are all hurting with the shocking news of the loss of Nate White,” South Dakota State coach Dan Jackson said in a statement. “Nate impacted our program with his hard work, determination and overall positive spirit. We grieve with his family and will honor his memory throughout the upcoming season.”

A Milwaukee native, White chose to play for Wisconsin over offers from Vanderbilt, Purdue and Iowa State, among others.

He played quarterback as a high school junior at Rufus King High School in Milwaukee and had 48 rushing touchdowns in his final two seasons as a prep.