Newton police say they are close to filing charges in the case of a robbery "gone bad."

Around 4:00 p.m. on Thursday at Joe's Tire Shop in Newton, investigators say two teens entered the store with a pistol, demanding money.

"He came in and raised the firearm up at the victim. At that time a struggle ensued," said Lt. Brian Kelly of the Newton Police Department. "The suspect then attempted to leave, and when he turned around he raised the handgun up at him and the suspect was shot at that time."

Investigators say the gunman was shot with a hidden shotgun that the clerk had managed to get. After the shot was fired, police say the 15-year-old suspect and his 18-year-old accomplice fled through a wooded area to some nearby apartments where they were later apprehended.

Both suspects are said to be storm evacuees from New Orleans. Officers say the gunman's injury to the arm was not life threatening.

Formal charges have not been filed, but both suspects are still being questioned by police.