DIX, IL - Authorities in southern Illinois are investigating the death of a 10-year-old boy who was accidentally shot by his 7-year-old sister.
 
The Jefferson County Sheriff's Department says Christian Clark of Granite City was killed in a recreational vehicle in a wooded area in the community of Dix. Officials with the sheriff's office say the RV is used for hunting and is owned by the boy's grandfather. That's where the girl found the gun and accidentally fired it Saturday.
 
The sheriff's office says an autopsy was performed Sunday. Authorities say they don't suspect any foul play but an investigation continues.