An Arizona shooting instructor died after the 9-year-old girl he was teaching to use an Uzi accidentally shot him in the head, according to the Associated Press.

Charles Vacca, 39, was standing next to the girl Monday morning, offering instruction at a shooting range in White Hill, about an hour southeast of Las Vegas, authorities told Phoenix station KTVK.

Mohave County Sheriff Jim McCabe told the Las Vegas Review-Journal that the girl had safely fired the gun many times when it was set in the “single-shot” mode. But then the gun was put into fully automatic mode, and that’s when it recoiled and fired off multiple rounds. The girl lost control of the gun as it went above her head, and she shot Vaca.

“The guy just dropped,” McCabe told Review-Journal.

Vaca died after being airlifted to a hospital in Las Vegas, the Associated Press reported.

The girl was vacationing with her parents, from New Jersey, and was visiting Last Stop Arizona, where the Burgers and Bullets shooting range is located, the Review-Journal reported.

The shooting range’s Web site says the minimum age for the “ground adventure” is 8, and children ages 8 to 17 “must be accompanied by parent or legal guardian at all times.”

McCabe said that no charges will be filed in the incident.