California authorities say a 3-year-old girl found a loaded gun and fatally shot herself in the head, the AP reports. Lemoore Police Department Det. Matthew Smith tells the Fresno Bee the girl and her family were visiting from Southern California when she found a gun in an apartment bedroom. Her mother, sibling, and the mother's friend heard the shot Saturday and tried to help. The child was taken to a hospital, where she died. Smith says two people who live in the apartment were gone when the girl fired the gun registered to a friend of one of the roommates. He says no arrests have been made, but the gun owner and the roommate could face charges. The case is being investigated as reckless endangerment of a child resulting in death and negligent storage of a firearm. (More guns stories.)