Black Lives Matter activist DeRay Mckesson was arrested Saturday in Baton Rouge, La., while protesting the death of Alton Sterling, according to several reports.
Mckesson was broadcasting the march on Periscope and filmed a portion of his arrest.
The Black Lives Matter activist was arrested while marching in Baton Rouge on Airline Highway. Police had told demonstrators to stay off the road. But McKesson reportedly said to those marching that there is no sidewalk, The New York Times reported.
In the broadcast, about five minutes in, police can be heard saying: "City police. You're under arrest. Don't fight me. Don't fight me."
Mckesson then says: "I'm under arrest, y'all."
The phone is handed off to other protesters who continued videotaping and explaining the incident.
A Louisiana state police official told a reporter with The Advocate that the protesters were "clearly blocking the roadway."
“We welcome the protests. We want them to voice their opinions. That’s what we’re here to do, to make sure they’re safe and they’re able to do that," he said in a video the reporter posted on the reporter's Twitter account.
“We wouldn’t arrest people who are quietly protesting off the roadway,” he said.
Supporters could be heard asking police why Mckesson was being arrested.
It was not clear what charges, if any, McKesson will face, according to The Advocate.