DE SMET, S.D.  -- A pilot is dead and a passenger survived after a plane crashed Tuesday into Lake Thompson near De Smet, authorities said.

The Kingsbury County Sheriff's Office responded to the crash of "a small plane" at about 10:30 a.m. Tuesday. Two men were in the plane, but the cause of the plane's crash is not immediately available.

Officials with the Kingsbury County Sheriff's Office said the pilot died on scene and his body was recovered by Codington County Search and Rescue. The passenger, Bruce Bortnem, of Aurora, was rescued by a boat that was on the lake. Bortnem was taken to an Avera hospital in De Smet.

Hospital employees listed Bortnem as in "fair condition," which means vital signs are stable and within normal limits, and the patient is conscious but may be uncomfortable.

Authorities remained at the lake Tuesday afternoon and evening to pull out the plane's wreckage. With the assistance of Bunker Auto and officials from the Federal Aviation Administration, the plane was successfully removed from the lake by about 8 p.m. Officials declined to provide the name of the pilot pending notification of his family.

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One of two FAA officials on site called the plane a "kit fox," an airplane that can be purchased and constructed from a kit and instructions. He declined to comment on whether the pilot constructed the plane.

Lake Thompson is about 10 miles southeast of De Smet and about 40 miles west of Brookings.

As of 3:30 p.m., the small plane was still at the bottom of the lake, but Bunker Auto brought equipment to the scene to recover the crashed vessel.

Other boat ramps remained open and boaters continued using the lake, but Kingsbury County Sheriff Kevin Scotting said the west-side boat ramp would likely remain closed for the rest of the day.

Other departments that responded included the Kingsbury County Emergency Management Office, Lake Preston Fire Department, Lake Preston Ambulance, De Smet Fire Department, De Smet Ambulance and South Dakota Game, Fish and Parks.