A South Carolina child has died after an apparent accidental shooting, the Orangeburg County Sheriff’s Office announced Friday.

“We are heartbroken over the tragic loss of a little princess,” Sheriff Leroy Ravenell said in a statement. “We lost a loved one this week.”

Orangeburg investigators were called to a Eutawville residence around 3:30 p.m. Wednesday for a reported shooting. They learned that a six-year-old girl was seriously injured after another child in the home shot at her.

The girl was taken to a medical facility where she later died from a single gunshot wound to the upper body.

“It is with a heavy heart that I let the public know what happened,” Ravenell said. “An incident of this nature, an investigation of this nature, is one of the most difficult that any investigator will ever conduct.”

Unintentional firearm injuries are the leading cause of death among children in the United States, the Centers for Disease Control and Prevention reported. According to Everytown, a nonprofit organization that promotes gun safety, last year was the year with the highest number of unintentional shootings by children, with over 400 incidents.

WIS10 reported that the South Carolina Department of Law Enforcement is investigating the shooting. The investigation is ongoing.