Austin, Texas: The Dallas Police Department on Monday fired a police officer who is facing a manslaughter charge after fatally shooting a man in his apartment and claiming she mistook it for her own.

Dallas Police Chief U. Renee Hall said in a statement the department had dismissed Office Amber Guyger after nearly five years on the job for her actions on the night of the shooting on earlier in September, and for engaging in "adverse conduct" when she was arrested for manslaughter. Police did not elaborate on what it saw as adverse conduct.

Guyger, 30, had been on administrative leave after she fatally shot Botham Jean, 26. The killing of an unarmed black man by a white officer sparked protests in the Texas city, with many calling for the officer to be fired and charged with murder.

The decision to fire Guyger came after an internal review and Guyger can appeal the decision, police said. An attorney for the officer was not immediately available for comment.

S. Lee Merritt, an attorney for the Jean family, said the police chief informed the family of the department's decision on Sunday night and they supported the move.