Cleveland Browns' running back Isaiah Crowell is apologizing after he posted a controversial photo to his Instagram account.

The photo in question is that of a man slitting the throat of a police officer with a knife.

It was quickly deleted, but not before screenshots of it found their way onto social media:

Crowell issued the statement below through the Browns organization Monday evening:

Last week was an emotional and difficult week as we saw extreme acts of violence against black men across our country as well as against police officers in Dallas.

I posted an image to Instagram in the midst of that emotion that I shouldn’t have and immediately removed it. It was an extremely poor decision and I apologize for that mistake and for offending people. My values and beliefs do not match that image. I am outraged and upset by the deaths of Alton Sterling and Philando Castile along with so many others.

I am also outraged and saddened by the attacks in Dallas and the deaths of the 5 honorable police officers (Lorne Ahrens, Michael Krol, Michael J. Smith, Brent Thompson and Patrick Zamarripa) who were providing protection while trying to keep peace. We have to be better as a society, it's not about color, it's about what's right and wrong. I was very wrong in posting that image.

Every single life matters, every death as a result of violence should be treated with equal outrage and penalty.