Wiring problems eyed in 3 kids' swimming deaths

(CBS/AP) OSAGE BEACH, Mo. - Authorities say improper wiring led to the deaths of two children at the Lake of the Ozarks on the Fourth of July.

Thirteen-year-old Alexandra Anderson and her 8-year-old brother Brayden, of Ashland, were swimming near a private dock when electricity traveled into the water.

Sgt. Paul Reinsch of the Missouri State Highway Patrol says there was no ground fault interrupter to monitor the current and trip the electricity if there was a problem.

He says the electricity could have come from several sources, including a boat lift or a pump used to power a water slide.

After the children were shocked, adults pulled the children from the water and performed CPR until medical crews arrived.

The children were taken to an area hospital where doctors pronounced them dead.

Meanwhile, investigators believe a faulty cord from a houseboat caused a swimmer in Tennessee to be electrocuted.

3 children electrocuted in Tenn. and Mo.

A 10-year-old boy died at the scene Wednesday afternoon and an 11-year-old boy was revived, but was reported on life support at a hospital.

Grainger County Sheriff Scott Layel said deputies were dispatched shortly before 2:30 p.m. to German Creek Boat Dock on Cherokee Lake where the boys encountered electrical current while swimming between two houseboats and a dock. The deputies immediately began performing CPR on the victims. The boy who was revived was taken to Morristown Hamblen Hospital and then transferred to Children's Hospital in Knoxville.

Layel said it's possible faulty wiring from a houseboat caused a short, which caused the electric current in the water, CBS News affiliate WVLT Knoxville reported.

Six other people who pulled the boys from the water also came in contact with electrical current, but did not receive life-threatening injuries.

Names were not immediately released.