An officer fired by the Decatur (GA) Police Department is suing the city over claims that he was let go because of a disability, according to the Atlanta Journal Constitution.

Peter Bourne says the department fired him after multiple medical incidents spurred by his mental health disabilities.

Bourne had worked for the city since 2012. In August 2016, he was admitted to Smyrna mental health facility Ridgeview Institute after an accident stemming from his anxiety, according to the lawsuit.

Bourne was fired in December 2017 following two internal affairs investigations—including a year-old complaint filed by a trainee alleging Bourne fell asleep in the passenger seat of a patrol car during the training, according to the Atlanta Journal Constitution.