The following is a press release from Yellowstone National Park:
One person was fatally injured as a result of an incident which occurred in a campground in Yellowstone National Park on Saturday morning.
Park rangers responded to a 911 call from a woman at the Grant Village Campground, who told the emergency dispatcher that her young daughter had shot herself with a handgun.
Resuscitation efforts by responding emergency medical staff were unsuccessful. The girl died.
The incident is under investigation. The child's identity is being withheld pending notification of extended family members.