MANHATTAN, Kan. (AP) _ Authorities fear two Kansas State University freshmen may have drowned in a 12,000-acre lake after the body of a classmate who had also been on the sailing trip was found.

Searchers in boats and on horseback along the shore planned a ``recovery effort'' Friday to find the two remaining missing bodies, said Brian McNulty, operations manager with the U.S. Army Corps of Engineers, which manages the reservoir.

``Based upon the fact that we haven't found them on the shoreline, we presume they are under water,'' he said. ``We've talked to the families and told them that in all likelihood they didn't make it.''

University officials identified them as Timothy Michael Bennett, 19, of Kansas City, Mo., and Kyle David Chapman, 17, and Christopher Nathan Shipley, 18, both of Olathe, Kan.

All three were experienced sailors and Eagle Scouts, close friends from the Kansas City area who lived in the same dorm.

Thet were last seen Tuesday afternoon setting sail from a dock at Tuttle Creek Cove in Chapman's 15 1/2-foot yellow racing dinghy. The 12,000-acre lake is just north of Manhattan, where KSU is located.

Their empty boat trailer was found at a yacht club and their shoes were found on the dock, said Steve French of the Riley County Police Department.

Authorities said Bennett's body, in a life jacket, was found Thursday about a half mile from the spot where the sailboat was found overturned earlier in the day.

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