Browns running back Isaiah Crowell has apologized for posting a highly graphic image to Instagram. The illustrated image, which has since been deleted, showed a man slitting the throat of a police officer.

In the image, the man attacking the officer is wearing all black with a hood over his head. Crowell also included the caption, "Mood: They give police all types of weapons and they continuously choose to kill us... #Weak."

In his apology, Crowell said it was an "extremely poor decision" to put the image on Instagram.

"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," Crowell said in a statement. "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."

It's not clear yet if there will be any punishment from the Browns, but the team is definitely upset with Crowell. In a statement, the team called his actions "completely inappropriate."

"We have spoken to Isaiah regarding his extremely disturbing and unacceptable social media decision. It was completely inappropriate and we have made him aware of our high level of disappointment," the Browns said in a statement. "Isaiah has apologized but also knows that just an apology is insufficient and that he must take steps to make a positive difference after a very negative and impactful post."

According to, Crowell posted the picture before Thursday's shootings in Dallas that left five officers dead.

The Browns running back says he posted the picture as a response to the shooting deaths of Alton Sterling in Louisiana and Philando Castile in Minnesota.

"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."

Browns fans were not very accepting of his apology.

Crowell led the team in rushing in 2015 with 706 yards and four touchdowns. The 23-year-old, who signed as an undrafted free agent in 2014, also added 19 catches for 182 yards and a touchdown.