FALLBROOK–A juvenile was sent to the hospital Friday after her cousin accidently shot her with a gun he found in their uncle’s motorhome in Fallbrook, San Diego Sheriff’s Department said.

The shooting was reported about 1:40 p.m. in the 900 block of Santa Margarita Road.

Deputies arrived and found the 12-year-old female conscious and alert with a single gunshot wound to the left shoulder area. They applied first aid until fire personnel arrived. She was transported by helicopter to Rady’s Children Hospital.  

Investigators said the girl’s 12-year-old male cousin had found his uncle’s 9mm handgun inside of a motorhome which was parked in the driveway of the residence. The motorhome was being prepared for a family trip. While both were inside the motorhome, the male was handling the handgun when a single round was discharged.

Deputies handling the initial investigation determined the shooting was accidental. Detectives are handling the follow-up investigation regarding the storage of the firearm and the circumstances of how it was obtained by the male juvenile.