3 children electrocuted in Tenn., Mo.

The scene at German Creek Marina in Bean Station, Tenn., on Wednesday, July 4, 2012, hours after one boy died and another was critically injured from an apparent electrocution at Cherokee Lake. Authorities said it was uncertain whether the boys were electrocuted in the water or when they touched the metal ladder of one of the houseboats. / Saul Young,AP Photo/Knoxville News Sentinel

Updated 8:27 PM ET

(CBS/AP) BEAN STATION, Tenn. - Three children were electrocuted in separate incidents in Tennessee and Missouri on Wednesday.

A sheriff in East Tennessee now says one boy swimming in a marina at Cherokee Lake was electrocuted and a second one was revived on a life flight out of the area.

Originally police reported that both boys had been killed.

According to CBS News affiliate WVLT Knoxville, Jeffrey Atkins, Grainger County EMA director, said that four children were swimming between house boats. A woman witnessed two of the children appearing unconscious. As she tried to help, the woman felt a surge and retreated.

Grainger County Sheriff Scott Layel tells the station that the boy who died was 10 years old and the revived boy is 11.

The sheriff's office says it happened around 2:15 p.m. near the German Creek Marina in Bean Station. Police say an additional six to eight people were taken to the hospital in Morristown to be checked out.

The marina has been evacuated as authorities conduct their investigation.

Meanwhile, two Missouri children have died after coming into contact with electricity while swimming at the Lake of the Ozarks on the Fourth of July.

The Missouri State Highway Patrol identified them as 13-year-old Alexandra Anderson and her 8-year-old brother Brayden, of Ashland.

The Patrol says the children were swimming near the 6.5 mile marker in the Gravois Arm of the lake when they were electrocuted by an "unknown source of electricity" just after noon Wednesday.

KOLR-TV reports several adults at the scene removed 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.

[wwwelectriciansjobtalkcom]

This is what happens when your brother in laws layed off union friend wires your dock. People die.

[MadeMyVanTipOver]

Hope it wasn't a Mr. Rewire job, that would be just awful. They work around there on docks and so forth.

[Uglywife]

That clown almost burned down my dog coup

[NewsCommentrator]

Is the local 0-phish-al dumb searching for the cause? Any leads? Will this story stay on the wire? Will there be anyone charged? Will 'higher-ups' be insulated? My condolences to the families.....

[Kestrel88]

We don't need no regulations or union tradesman. Let some low-wage, bath-salt-huffing Wal-Mart bagger flunky do your electrical work!

Yee haw! FREEDOM!

[fantasywriter411]

Excuse me, let some low wage, bath-salt-huffing Wal-Mart bagger flunky do your electrical work! What an idiot. No one wants to eliminate regulations. What reasonable people want are regulations that help keep the public safe not hinder business and how work is done. Read some of the regulations on what to do if you happen to drop a fluorescent light bulb.

[brassia1]

What a completely disgraceful and inhumane act-firing a lifeguard for saving life!!!! Wonder if those people have more concern and compassion for animals and insects or belong to environmental group wackos...

[rickster454]

"unknown source of electricity"?, What does that mean?

[knewsteerrrrr]

ummmm... it means they don't know which boat, dock, light, generator was faulty, real rocket science there Amigo! Or maybe it was just a lighning bolt from god?

[Elron_Aven]

The source could have been miles away. A cut piece of buried cable, is all it takes. If you turn the main breaker off on most houses and put an amp probe on the service grounding wire, you'll see sometimes several amps of current flowing up your gnd to the poco xformer. Where it comes from is anyone's guess. Often its a loose neutral connection on a neighbor's service causing some of their neutral current to flow out their grounding system

[inletbeach]

Water and electricity do not mix. Sailboat masts come in contact with power lines. Boats have electrical systems that can jump to the water. Any human who gets in the path is in trouble. People need to check their vessels for electrical faults. It is plain physics that electricity will seek the path of least resistance.

[javitzso2]

@notguil-cup: Pure H2O does not conduct electricity by itself. A lake or an ocean or a bath full of washed off sweat is a great conductor of electricity, yes. "Water" itself is not. It requires electrolytes (basically salts) to allow the flow. This comment comes from an ignorant American who feels for these folks loss.

[GollyRojer]

notguil-cup, how were you able to determine that inletbeach is American?

[marcie10000]

AWFUL! First the little girl at the Florida golf course and now this! Aren't there rules and inspectors with electrical lights?

[scottksmith]

Yes, there absolutely ARE safety standards published by the ABYC and NOT the National Electrical Code ! The problem is that too many weekend warriors are too cheap to hire a competent professional marine electrician to do the work. And worse, many think wiring a houseboat is just like wiring a house. IT ISN'T !

[knewsteerrrrr]

It was a shocking affair! BZZZZZTTTT

[hypnotoad72]

Yikes.

My prayers and best wishes go to those involved in this tragedy.