A recovery operation is underway for boaters presumed to have perished Wednesday morning when their small craft sank just below Pickwick Dam.
Counce-Pickwick Fire Chief Richard Childers said witnesses saw the flat-bottom jon boat taking on water and sink. Authorities were notified at 11:23 a.m.
He said one person, and possibly two, were aboard when it went under. No names have been released.
TVA closed three spillways at the dam and barge traffic has been halted to accommodate the search.
Staff from the Hardin County Fire Department, Tennessee Wildlife Resources Agency and TVA Police are at the scene.
Childers said the search will continue until dark and resume Thursday morning if needed.