MINNEAPOLIS (WCCO) — A teenage boy was rescued after being trapped under a log for hours after going over a waterfall in a canoe Wednesday afternoon.

The Lake County Sheriff’s Office says they received report of the emergency just after 1 p.m. on Basswood Lake in the Boundary Waters Canoe Area Wilderness.

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The teen was one of three people riding in a canoe which went over the Upper Basswood Falls near the Canadian border.

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Rescuers freed him at about 5:15 p.m., and about two hours later a helicopter flew him to a seaplane, which then took him to an ambulance. He was eventually taken to an Ely hospital.

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He suffered a possible ankle fracture and hypothermia in the ordeal. His identity has not been released.