A 12 year old Beaverton boy was seriouly injured in a  boating accident recently.

It happened on a lake near Mossyrock, Washington.

Stacy Brown,  with the Lewis County Sheriff's Office, says the boy was in the water when he was hit by the propeller.

"The father of the victim mistakenly put the boat in reverse.  Alcohol was not a factor in this case, it was purely an accident."

The boy suffered injuries to his left thigh, upper torso and chest.  He was airlifted to Legacy Emanuel Hospital in Portland.