A single-vehicle accident on I-65 in Jackson County Tuesday morning was fatal to a northern Indiana man.

The initial investigation by Indiana State Police indicated that at about 9 a.m., a car being driven by William A. Dudek, 61, of South Bend, was northbound at the 44-mile marker, and for an unknown reason veered off the right side of the expressway. The car then struck a guardrail, became airborne, and crossed all northbound lanes of I-65 before coming to rest in the median.

Dudek was extricated and transported to Schneck Medical Center where he succumbed to his injuries.

The northbound lanes of I-65 were closed for nearly two hours for crash investigation and cleanup.