Officer Alexander Ego was fired by police chief Fred Fletcher on Tuesday. The officer was accused of sexual assault and inappropriate sexual behavior while on duty last week after a complaint was filed March 30 for an incident on March 25.

The Tennessee Bureau of Investigation, which began reviewing the evidence at the request of 11th District Attorney General Neal Pinkston, has not disclosed whether the person who filed the complaint is male or female, but has said that the person is a not a minor.

Ego was a new recruit who only graduated from the place academy in September.

“Because there is an active criminal investigation concerning Probationary Officer Alexander Ego’s behavior, the Chattanooga Police Department will be unable to release additional details or comment further at this time,” said police communications coordinator Kyle Miller in a release.

Chattanooga witnessed another police officer fired for sexual behavior on the job in 2015. Former detective Karl Fields was accused of making sexual advances on a female rape victim and was fired in April 2015.

Despite an internal investigation revealing hundreds of inappropriate text messages to the woman including a request for nude pictures, Fields did not face criminal charges.