Police say a preliminary investigation indicates a man found dead on the Williston State College campus died of a drug overdose.

Police say a preliminary investigation indicates a man found dead on the Williston State College campus died of a drug overdose.

The body of 27-year-old Thomas Ober was found in a car Tuesday morning. The entrance to the college was sealed off for much of the day as authorities investigated.

KXMC-TV reports (http://bit.ly/2sm0mHz ) that the college says Ober was not a student.