State police at the Frackville barracks reported that Tanner F. Hahn, 28, of Walnutport, was uninjured when the tractor-trailer he was operating jackknifed on Interstate 81.

The incident occurred at 10:29 p.m. March 29 at mile marker 137.7 southbound in Kline Township, police said.

Hahn was driving a 2024 Freightliner Cascadia that he lost control of due to a mechanical failure, according to police.

The rig hit a culvert on the right side of the road, jackknifed and came to rest on the right shoulder.