LOUISVILLE, Ky. (October 30, 2012)--Two children who were killed in a school bus crash were both 3 years old, Kentucky State Police said Tuesday.

Police identified the young victims from Monday's crash as Ryder Deitz and Caroline Tuttle, both of Carrollton, Ky.

Police say the boy and girl were pronounced dead at the scene after a Carroll County school bus taking students home from the Head Start preschool program overturned and crashed into a tree.

Nine children, all preschoolers, were on board along with two adults.

Five children remained hospitalized Tuesday.

The crash, which occurred on a narrow country lane in Carrollton, Ky., remains under investigation.