Police say a New York man running to the aid of another motorist fell to his death from a bridge, apparently because he didn't know there was a large gap between lanes.

State police say 44-year-old Kevin Ryan, of Mount Kisco, was traveling on Route 23 in the town of Catskill, 30 miles south of Albany, around 10:45 p.m. Sunday when he noticed a vehicle overturned in the opposite lane.

Investigators say Ryan stepped over a concrete barrier unaware there was a 17-foot wide gap between the eastbound and westbound lanes of the bridge. He fell nearly 50 feet to the rocks and concrete below. He was pronounced dead at a hospital.

Troopers say the driver of the other vehicle suffered minor injuries.