An Arizona gun range instructor died on Monday after a 9-year-old girl accidentally shot him in the head while he was teaching her how to fire an automatic Uzi.

The tragic accident occurred Monday morning around 10 a.m. at the Bullets and Burgers outdoor gun range in White Hills, which is about 60 miles from Las Vegas.

Charles Vacca, 39, was showing the little girl how to use an Uzi when the child lost control of the Israeli-made submachine gun.

"Vacca was standing next to the girl while he was instructing her how to use to weapon when the accident happened. Further investigations determined the girl pulled the trigger on the automatic Uzi, the recoil sent the gun over her head and the victim was shot," states a news release, according to CBS affiliate KLAS-TV.

The married veteran died in a hospital later that evening. He spent about 18 months working as an instructor at the outdoor range, located near the Nevada border.

The girl, who has not been identified, was reportedly from New York and was visiting the range with her parents on vacation, KTNV reports. Her parents filmed her tutorial session using a video phone moments before the fatal accident, said Sam Scarmardo, the manager at the gun range, reports the New York Daily News.

In the video, the girl fires several rounds in rapid succession before she loses control and the gun shifts to the left.

"We really don't know what happened," said Scarmardo. "Our guys are trained to basically hover over people when they're shooting. If they're shooting right-handed, we have our right-hand behind them ready to push the weapon out of the way. And if they're left-handed, the same thing."

According to Bullets and Burgers website, children between the ages of 8 and 17 are permitted to shoot a weapon when accompanied by a parent or guardian.

However, the range has changed its policy following the accident. Now shooters will have to be at least 5 feet tall or 12 years old to shoot.

Watch video footage of Charles Vacca's last moments at gun range below.