A Williamson County correctional officer was arrested in the jail parking lot on drug charges Tuesday, Williamson County Sheriff Robert Chody said.

The sheriff's office said Richard Acuna, Jr., a correctional officer at the Williamson County Jail, was arrested after a K-9 officer alerted deputies to Acuna's vehicle in the public parking garage. Deputies then located cocaine inside Acuna's vehicle, and he was arrested.

Acuna has been charged with possession of a controlled substance, a second-degree felony. Bond information was not listed in Williamson County Jail records as of 10:55 a.m.

An investigation is ongoing.