(CRYSTAL LAKE) A woman accidentally shot herself during an incident Monday at a gun range in northwest suburban Crystal Lake.

The 55-year-old was shooting at the pistol range at On-Target at 560 Beechcraft Lane when she was injured just before 12:45 p.m., according to a statement from Crystal Lake police.

The woman fired a shot and a hot, expended shell casing landed inside her shirt, police said. When she tried to remove it, the pistol accidentally discharged and a bullet struck her in the thigh, officials said.

The McHenry resident was taken by ambulance to Centegra Hospital in McHenry for further evaluation, police said. Her condition was not known, and no one else was injured.

Police said they are not investigating the matter further, and no charges will be filed.