The Lancaster County Sheriff's Office said an 80-year-old man was found dead under a tractor at 9017 Agnew Road near Ceresco.
Officials say Virgil Oberg was cutting down tree branches with a chainsaw when he lost control of the tractor and fell.
Oberg was found pinned under the tractor, which was on its side submerged in water.
Officials have not confirmed how long Oberg was under the tractor before he was found.
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