An on-duty state trooper suffered non-life-threatening injuries when his cruiser went off Route 302 and hit a utility pole early Thursday in Bartlett, officials said.

The crash occurred at 3:20 a.m. while Sgt. Nathan Johnston was traveling eastbound when, “for reasons that remain under investigation,” State Police said in a news release, the cruiser went off the shoulder of the road and hit a utility pole, bringing down utility wires.