State Police said two children were injured while riding an ATV in Morgan County.
According to troopers, an 8-year-old was driving the four wheeler with a 3-year-old riding on it too.
EMS said they both treated both of the children on the scene before bringing them to the hospital.
They said the 3-year-old was then careflighted to UK Hospital where he is in serious condition.
Police said neither one of them had on a helmet.