BETHLEHEM, N.H. (AP) — New Hampshire authorities say a man died while attempting to assist a stuck snowmobiler.

Fish and Game Department conservation officers say 67-year-old John Doherty, of Bethlehem, had been snowmobiling with his family on Sunday when he stopped and got off his vehicle to assist with a snowmobile on an icy hill in Bethlehem. He suffered a medical emergency and collapsed.

CPR was performed by a family and passing snowmobilers until first responders arrived, but Doherty did not survive. He was pronounced dead at the scene.