TIPPAH COUNTY, Miss. (WJTV) – Authorities are investigating an officer-involved shooting that happened in Tippah County near Walnut on Sunday, October 17.

According to the Attorney General’s Office, Mississippi Highway Patrol officers were involved in the incident. A 45-year-old man was injured during the shooting. He was listed in critical condition at the hospital.

The Attorney General’s Office designated the New Albany Police Department to investigate the shooting.

State law says the Mississippi Bureau of Investigation is responsible for investigating when a person is killed or injured after being shot by city or county law enforcement. However, when a state highway patrol officer is involved, the attorney general’s office must designate an outside agency to investigate, according to a law that took effect July 1.

Michelle Williams, chief of staff at the Mississippi attorney general’s office, said this is the first time the office has needed to designate an agency to help investigate a shooting.

“Within the next 36 hours from now, about 48 hours from yesterday, we will have an interview with the officers, and then we’ll be able to proceed from there,” Williams said.

So far, no additional information has been released.

The Associated Press contributed to this report.