Yusuf Yerkel unleashed an international outcry when photos went viral of him, dressed in a suit and tie, kicking a demonstrator as he was held down by two security officers during protests over the deadly mining disaster in Soma.
The pictures helped fuel outrage against the government over the country's worst-ever mining disaster that killed 301 people, especially when it later emerged that Yerkel was granted seven days of sick leave for the injuries that the kicking caused to his leg.
"I am sorry as I was not able to keep my calm in the face of all provocations, insults and attacks I was subjected to," Yerkel told local media.
That official Anatolia news agency today said that Yerkel, who has held the post of Erdogan's chief of staff for three years, was fired on Wednesday.