A man in Sedgwick County, Kan. was accidentally shot in the butt by a gun fired from a half-mile away on Sunday afternoon, police said.

Television station KAKE reported that Sedgwick County officers said the victim, whose name has not yet been released, was walking in his backyard when he was struck by the stray bullet. Officers said the shot was fired by a group of men, ages 18 to 20, who were shooting targets from the other side of a field, which separated them from the victim’s home.

The victim’s sister-in-law, Brenda Mies, told the television station this isn’t the first time bullets have been found on her brother-in-law’s property.

“Sheds have been shot out here, our cars have been shot,” Mies said.

According to KAKE, Sedgwick Co. Sgt. Kevin Berry said the accident was a reckless mistake.

“When you’re shooting rifles that are made for long distance shooting you definitely need to know what’s behind your target when you shoot,” Berry said.

The victim was treated for his non-life threatening injuries and was released from the hospital. The five target shooters were brought in for questioning Sunday afternoon and Berry said they could face aggravated battery charges, according to KAKE.