A controversial Polk County sergeant has been fired, according to the Polk County Sheriff's Office.

Former Sgt. Dan Charleston was terminated from his job on Friday, according to the sheriff's office. Because of possible appeals or litigation, the sheriff's office declined to comment further.

But Charleston has faced a number of controversies during his time at the sheriff's office. Most recently, he was under internal investigation by the sheriff's office for Facebook posts made in early June regarding Islam, including one post that called the religion an "evil ideology."

One post showed a graphic that claimed to list "verses from the Quran that inspire terrorists." Charleston added his own comments to accompany the graphic, including: "No reasoning with this evil ideology," referring to Islam.