8-year-old boy shot and killed by 5-year-old brother inside Arkansas home

An 8-year-old boy was shot and killed by his 5-year-old brother Thursday at an Arkansas home in what the local sheriff called a "tragic accident."

According to the Jefferson County Sheriff's Office, deputies were dispatched to a residence following a 911 call of a reported shooting involving a young child.  Inside the home, deputies found an unresponsive 8-year-old boy, who was declared dead at the scene by the coroner.

Investigators did not release any details about led up to the shooting but believe it was accidental.  Sheriff Lafayette Woods Jr. said the shooting "could have been avoided" and suggested the gun was not properly secured by the owner.