PIERRE, S.D. (AP) — South Dakota prosecutors say an inmate and a correctional officer have been indicted for allegedly working together to plan the inmate's escape.

A grand jury on Wednesday indicted 24-year-old Tyler Statler and 23-year-old officer Koreena Schultes on one count each of conspiracy to commit escape, a felony. Statler was serving time at the Lawrence County Jail but prosecutors did not say what crime led to his sentence.

Prosecutors announced the indictment Friday.

Prosecutors say they began investigating the pair last month after receiving information about a jail security matter. Authorities did not provide any more details.

If convicted, Statler and Schultes face up to five years in prison.

The case is being prosecuted by the Lawrence County States Attorney's Office.