FORT WORTH (AP) –  A Texas police sergeant accused of frequently working fewer hours than his time sheets showed has been fired.

John C. Ost appealed his Tuesday termination on Friday.

Ost was a 21-year veteran of the department. An investigation targeted him and three other jail sergeants.

Officials say one of those officers avoided discipline by resigning while another took a voluntary demotion.

The fourth sergeant was admonished for once leaving early.

Ost’s attorney Terry Daffron Porter said there were “irregularities” in the investigation and his client was surprised by the “disparate treatment.”

Police spokesman Lt. Paul Henderson says it’s unfortunate that a few police officers can tarnish the reputation of the majority who work hard every day and possess the highest levels of integrity.

(Copyright 2011 by The Associated Press. All Rights Reserved.)