SIOUX FALLS, S.D. (AP) - Police say a 22-year-old window cleaner is dead after falling off the roof of a hospital building.

KDLT television reports that the man was washing windows at Avera McKennan's Prairie Center when the accident happened about 12:30 p.m. Saturday.

Police say he was moving scaffolding equipment when it fell over the edge of the building with him attached to a harness. The falling equipment pulled him over the edge.

A witness saw the man on the second floor and went to get help, but the man died from the injuries.

Police say the frame of the equipment was somewhat on top of him when he was found.

Authorities have not yet released the name of the man, who was not employed by Avera McKennan.

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