LOUISA, VA — A 2-year-old boy was shot and killed by his 4-year-old brother in Louisa, authorities told media outlets. It happened Tuesday morning on Shannon Hill Road. The older sibling thought the gun was a toy , Maj. Donnie Lowe, of the Louisa County Sheriff's Office, told WTVR-TV.

The injured child was rushed to a hospital with a gunshot wound to the chest but did not survive, the station reported.

The child's father was at work, a reporter from the outlet said. Two other children were at school at the time of the shooting. Video showed investigators going into the home.