Rev. Al Sharpton instructed Fox News host Megyn Kelly to “calm down” during a heated exchange Wednesday night about Black Lives Matter.

Early on in “The Kelly File” interview, the host asked Sharpton, “Do you feel bad” about his remarks that Ferguson, Missouri police officer Darren Wilson did not kill Michael Brown in self-defense.

“No,” Sharpton responded. “Don’t distort what the DOJ said.”

The question kicked off a back-and-forth about the Justice Department’s findings that lasted for several minutes, with Kelly pressing Sharpton on whether he feels responsible for disseminating opinions after “your opinion is proved to be wrong.”

“You don’t talk to all the witnesses! The DOJ does,” Kelly said. “It can be a crime to lie to an FBI agent. It’s not a crime to lie to Reverend Al.”

“Megyn, calm down,” Sharpton replied.

“Now watch it with ‘calm down,’” Kelly cautioned. “Ask Bill O’Reilly about that. I had to lecture him on that one himself.”

Watch the full interview via Fox News, with the back-and-forth starting around seven minutes in: