There have been four separate complaints of electric shocks suffered by those using the Cherokee Reservoir, and investigators don't yet know the cause.
The Tennessee State Fire Marshal's Office has warned swimmers and boaters at the Cherokee Reservoir to use an abundance of caution as investigators work to determine what caused the shocks this week at the private docks in the Morristown, Tennessee area.
A fisherman walks along the bank of Tennessee Valley Authority's Cherokee Reservoir near Jefferson City, Tenn., in this 2012 file photograph.State fire marshals are working with TVA engineers and Appalachian Electric Cooperative to try to determine the source of the shocks.
None of the shocks have resulted in injuries or deaths, but residents and visitors should use caution nonetheless.
"We do not yet know the cause of these electric shocks or their power source," said Gery West, deputy commissioner of the Tennessee Department of Commerce & Insurance. "Until we can determine the power source and correct the problem, we want boaters and swimmers to be aware of the situation and use extreme caution."