A federal investigation has been opened after a police sergeant was filmed stomping on the head of an Indianapolis man while he was lying handcuffed on the ground, reports Huffington Post.

The U.S. Attorney’s Office in the Southern District of Indiana announced Wednesday that it is looking into the Sept. 24 incident, which led to criminal charges being filed this week against Indianapolis Police Sgt. Eric Huxl

“Our office and the FBI has opened an investigation, and if the investigation reveals prosecutable violations of any federal criminal statutes, the Department will take appropriate action,” Acting U.S. Attorney John Childress said in a statement.

Body camera footage shows Huxley stomping on Jermaine Vaughn’s head during a disorderly conduct arrest in downtown Indianapolis. Huxley was charged Tuesday with official misconduct and battery with moderate bodily injury. Both are felonies.

“I’m upset,” Indianapolis Metropolitan Police Chief Randal Taylor said at a press conference Tuesday before sharing the body camera footage. “It hurts me to see any of our officers treat someone the way that you’re going to see shortly. There’s no excuse for it.”

Taylor said he has recommended Huxley be terminated from the police force. In the meantime, Huxley has been suspended without pay pending recommendation of termination from the Indianapolis Metropolitan Police Department’s civilian policy merit board.