RALEIGH, N.C. — A police chief says a big quarterly gun show at North Carolina’s state fairgrounds is barring private gun sales after an accidental shooting injured three people.

State Fairgrounds Police Chief Joel Keith said a 12-gauge shotgun discharged Saturday while its owner removed it from its case for a retired sheriff’s deputy to check. That was at a security entrance to the Dixie Gun and Knife Show, which draws thousands of people to the fairgrounds in Raleigh.

Keith said the officer didn’t need treatment for his slight hand injury.

Keith said two bystanders were hit by shotgun pellets and taken to a hospital. They are Janet Hoover, 54, of Benson and Linwood Hester, 50, of Durham.

Shotgun owner Gary Lynn Wilson, of Wilmington, brought the weapon looking for a private buyer.