A Michigan Department of Natural Resources law enforcement officer died Sunday after the plane he was piloting crashed in northern Michigan, the DNR said in a news release.

First Lt. Arthur Green III, 58, of Farmington Hills, was supervisor of the DNR district covering Wayne, Oakland, Monroe, Genesee, Lapeer, Macomb and St. Clair counties, the release said. He was flying a private Piper Cherokee to a meeting of the DNR Law Enforcement Division at about 11 p.m. Sunday when the plane crashed during its approach to the Harbor Springs Airport in Emmett County, the Lansing State Journal reports.

Green was alone in the plane. The accident remains under investigation.

“F/LT. Green’s death is a profound loss for the DNR and for the citizens of the state,” DNR Law Enforcement Division Chief Gary Hagler said in a statement. “He was a dedicated professional who was deeply committed to protecting our nation, its citizens and Michigan’s natural resources. Most recently, F/LT. Green was instrumental in the smooth transition of Belle Isle Park in Detroit to DNR management. He will be greatly missed.”