YANKTON, S.D. (AP) The sheriff in Yankton County says a man whose body was recovered yesterday from Lewis and Clark Lake after his boat rammed the rocks at Gavin's Point Dam suffered a severe injury to his arm.

Twenty-five-year-old Brian Nielsen of Yankton had been missing since Saturday when his empty boat was seen circling on the lake.

Sheriff Dave Hunhoff says Nielsen's right arm had injuries that appeared to have been caused by a boat propeller.

An autopsy will be done.

(Copyright 2007 by The Associated Press. All Rights Reserved.) APNP 08-15-07 0748CDT | save this article / add to your favorites list