There were creative differences on the set and a disagreement, Gibson said in a statement released to EW.
I regret that it occurred.
We all want to work together as a team to make the best show possible.
Credit: Cliff Lipson/CBS
We always have and we always will.
Its unclear when Gibson will return to work.
A rep for ABC Studios, which co-produces the drama with CBS Studios, would not comment.
This may not be the first time that Gibson has engaged in troubling behavior on set.
Gibson has played a key part of the drama since it premiered in 2005.
On-set conflicts are not only a public relations nightmare but can sometimes lead to termination.
In the third season ofGreys Anatomy, Isaiah Washington had insulted co-star T.R.
Knight with a homophobic slur.
